State of Iowa v. Kevin Jon Thoren ( 2022 )


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  •                    IN THE SUPREME COURT OF IOWA
    No. 20–0192
    Submitted October 20, 2021—Filed February 25, 2022
    STATE OF IOWA,
    Appellee,
    vs.
    KEVIN JON THOREN,
    Appellant.
    On review from the Iowa Court of Appeals.
    Appeal from the Iowa District Court for Polk County, Jeffrey D. Farrell,
    Judge.
    The defendant seeks further review of the court of appeals decision
    affirming his conviction for sex abuse and the district court rulings allowing
    evidence of the licensing board’s investigation and settlement and his prior bad
    acts. DECISION OF COURT OF APPEALS VACATED; DISTRICT COURT
    JUDGMENT REVERSED AND REMANDED.
    Oxley, J., delivered the opinion of the court, in which Christensen, C.J.,
    and Appel and McDermott, JJ., joined. Waterman, J., filed a special concurrence,
    2
    in which Mansfield, J., joined. Mansfield, J., filed a special concurrence, in which
    Waterman and McDonald, JJ., joined.
    Martha J. Lucey, State Appellate Defender, and Ashley C. Stewart (argued),
    Assistant Appellate Defender, for appellant.
    Thomas J. Miller, Attorney General, and Bridget A. Chambers (argued),
    Assistant Attorney General, for appellee.
    3
    OXLEY, Justice.
    “It is fundamental to American jurisprudence that ‘a defendant must be
    tried for what he did, not for who he is.’ ” United States v. Foskey, 
    636 F.2d 517
    ,
    523 (D.C. Cir. 1980) (quoting United States v. Myers, 
    550 F.2d 1036
    , 1044 (5th
    Cir. 1977)). Our rules prohibit using a defendant’s prior bad acts as propensity
    evidence—that is, to show that because a defendant did something before, he
    must have done it again. That said, evidence of prior bad acts can be used for
    other purposes, but only if the other purpose is truly disputed in the case. And
    when the evidence is allowed, the district court must take care to limit use of the
    evidence to the proper use, not the prohibited propensity use.
    The defendant in this case, who was convicted of sexually abusing a client
    during a Reiki treatment session, argues the court of appeals erred in affirming
    his conviction because the district court violated this fundamental principle.
    Specifically, the defendant asserts the State should not have been allowed to
    introduce evidence about an investigation by the Iowa Board of Massage Therapy
    (Board) into allegations he had inappropriately touched other clients that
    ultimately led to the loss of his massage license or testimony from those
    complaining former clients. Given the unique circumstances of this case and the
    significant evidence presented about “phantom touches” in the defendant’s
    attempt to convince the jury the victim only imagined that the defendant
    vigorously rubbed her vaginal area with his hand during the Reiki session, we
    conclude the district court properly admitted some evidence from the defendant’s
    former massage clients about their experiences. But the district court erred in
    4
    allowing evidence about the Board’s investigation, which gave the Board’s
    imprimatur of wrongdoing. The district court also failed to identify which issues
    were truly disputed, which led the district court to allow more testimony from
    the former clients than was permissible. The State’s closing argument reveals
    the risk that the jury used the evidence for the prohibited purpose, not the
    allowed purpose, when the State urged the jury to consider the prior incidents
    to decide “did he intend to do this to her. He’s done it to five other women.” The
    defendant is entitled to a new trial.
    I. Factual Background & Proceedings.
    Kevin Thoren voluntarily surrendered his license to practice massage
    therapy in September 2018 following an investigation by the Board. The
    investigation arose from a complaint of inappropriate touching filed by a client
    named L.K. The complaint alleged that during a massage in 2014 Thoren
    exposed L.K.’s breasts and pulled on her nipples. Although Thoren voluntarily
    surrendered his license after the investigation, the self-surrender included no
    admission of guilt.
    In addition to L.K., four other clients filed complaints with the Board about
    inappropriate sexual conduct during appointments with Thoren. J.J., who
    worked for Thoren, complained in 2017 that Thoren had massaged too close to
    her breasts in 2008 and 2009 after she asked him not to and that Thoren had
    used an electric vibrating machine against her wishes. J.J. was so upset that
    she quit working for Thoren after the incidents. In 2017, M.L. complained that
    Thoren had massaged the side of her breast during a 2012 appointment in an
    5
    inappropriate way while panting and breathing heavily in a way that made her
    believe he was aroused. In 2016, A.N. complained that Thoren had placed an
    electric vibrating machine on her breasts, lower abdomen, and uncomfortably
    close to her vagina during appointments in 2009. Finally, upon hearing about
    the charges against Thoren, his sister-in-law, S.T., told law enforcement about a
    massage in 2009 during which Thoren had placed an electric vibrating machine
    on her crotch area and over her clitoris. S.T. eventually filed a complaint with
    the Board in August 2019. Thoren was not criminally charged for any of the
    complaints filed by these former clients with the Board. This case is about later
    events with another client, L.R., involving nonmassage healing treatments. Yet
    the Board’s investigation and his prior conduct formed the opening evidence
    presented by the State at Thoren’s trial for sexually abusing L.R.
    Thoren continued to offer alternative healing modalities, including Reiki
    and craniosacral therapy, after surrendering his massage license. The client
    remains fully clothed for these treatments. According to the evidence presented
    at trial, Reiki, often referred to as a type of energy therapy, is an ancient form of
    natural hands-on healing where the practitioner holds his hands over the client’s
    body to facilitate a transfer of energy to help the body heal itself. In a Reiki
    treatment, the practitioner either gently touches or holds his hands lightly above
    the client’s body without actually touching it. Reiki is different from massage in
    that Reiki involves no rubbing, kneading, or manipulation. The practitioner
    holds his hands stationary in specific positions, either hovering over or gently
    6
    touching the client’s body, and removes his hands each time he moves to the
    next hand position.
    Craniosacral therapy is also distinct from massage. It focuses on the bone
    structure between the skull and the sacrum bone at the base of the spine and
    works to improve movement of cerebral spinal fluid throughout the spine. The
    practitioner gently touches certain areas on the head or the sacrum—described
    as using pressure equal to the weight of a dime—with no movement or
    manipulation.
    The story that led to the charges for which Thoren stood trial actually
    starts here. On November 21, 2018, L.R. was attending her second appointment
    with Thoren. L.R.’s first appointment for a craniosacral therapy treatment
    provided relief for her neck and headaches, so she booked a second appointment
    online. The appointment receipt shows that L.R. signed up for Reiki therapy,
    although she intended to book another craniosacral therapy session. This
    distinction matters because Thoren’s theory at trial was that L.R. imagined the
    physical contact she claims she experienced, introducing evidence that clients
    may feel phantom touching—a feeling of being touched in places where no
    contact has occurred—during Reiki sessions like L.R. received.
    The parties disagree on the facts of what happened during L.R.’s second
    appointment. According to L.R., Thoren covered her eyes with a cloth and stated
    that he was going to “work on [her] vaginal area.” Thoren then began to rub L.R.’s
    stomach with his hand over her clothes, moving his hand down her body and
    eventually applying increasing amounts of pressure and rubbing vigorously over
    7
    her clitoris, vagina, and anal area, repeatedly asking her to describe what she
    was feeling. L.R. did not know what to do at first but was finally able to tell
    Thoren to stop and left the appointment. L.R. filed a sexual assault report with
    the police in February 2019.
    Thoren describes a very different account. According to Thoren, during a
    conversation at the start of the second appointment L.R. repeatedly mentioned
    that her sexual energy had returned after her last session. Thoren ignored the
    comments and began the session, which included both craniosacral therapy and
    Reiki. He recalled touching L.R. at the start of the session while performing
    craniosacral therapy, but denied touching her at any point during the Reiki
    treatment and denied ever touching her vaginal area. Thoren held his hands
    above L.R.’s naval and her solar plexus, which is the common method for
    conducting the Reiki treatment. He also insisted that he ended the session after
    L.R. groaned and said she had just experienced an orgasm. He repeatedly told
    her that was not the purpose or intent of the therapy.
    Prior to trial, Thoren moved to exclude evidence from the Board relating to
    the previous complaints against him. The district court denied his motion and
    permitted a Board representative to testify about the Board’s investigation and
    the five former clients to testify about Thoren’s inappropriate touching during
    massage sessions. The jury ultimately found Thoren guilty of sexual abuse in
    the third degree. Thoren appealed his conviction, challenging the admission of
    evidence about the Board’s investigation and report as well as the testimony from
    8
    his former clients. The court of appeals affirmed, and we granted Thoren’s
    application for further review.
    II. Standard of Review.
    Thoren appeals the district court’s evidentiary rulings, which we review for
    abuse of discretion. Stender v. Blessum, 
    897 N.W.2d 491
    , 501 (Iowa 2017). “A
    district court abuses its discretion when it bases its decisions on grounds or
    reasons clearly untenable or to an extent that is clearly unreasonable . . . [or] if
    it bases its conclusions on an erroneous application of the law.” 
    Id.
     (citation
    omitted).
    III. Error Preservation.
    The State argues the district court’s motion in limine ruling was
    conditional, so Thoren failed to preserve error on the issues raised in his motion
    to the extent he did not also object to the evidence at trial. Although Thoren
    objected at trial to the State’s introduction of the Board’s report, he did not object
    to testimony from his former clients.
    Thoren moved in limine to exclude (1) testimony and other evidence
    relating to the Board investigation which led to the self-surrender of his license
    and (2) testimony from any former clients alleging abuse during a massage. He
    argued that this evidence was irrelevant under Iowa Rule of Evidence 5.402, that
    it would be unfairly prejudicial under rule 5.403, and that it was improper
    propensity evidence under rule 5.404(b). The State resisted and affirmatively
    requested to admit the evidence of prior acts related to revocation of Thoren’s
    license and the Board’s investigation of the five complaints, arguing the
    9
    challenged evidence was relevant to show: Thoren’s knowledge that the types of
    massages he had previously engaged in were inappropriate; Thoren’s motive or
    modus operandi to sexually assault women “under the cloak of ‘healing work’ or
    ‘therapy’ ”; Thoren’s general intent to commit a sex act as opposed to a mistake
    or accident; Thoren’s plan to “lull women into a sense of security before
    assaulting them”; and Thoren’s consciousness of guilt from the surrender of his
    license.
    The district court denied Thoren’s motion and granted the State’s request,
    conditioned on satisfying foundational issues for admitting the evidence. The
    State subsequently listed the five prior clients as witnesses, and Thoren moved
    to reconsider the court’s prior ruling and strike the identified witnesses. The
    court denied Thoren’s motion, ordering: “The State’s proposed witnesses may
    offer testimony within the parameters of that [prior] ruling.”
    Generally, denial of a motion in limine does not preserve error for appellate
    review. State v. Leedom, 
    938 N.W.2d 177
    , 191 (Iowa 2020); Quad City Bank & Tr.
    v. Jim Kircher & Assocs., P.C., 
    804 N.W.2d 83
    , 89 (Iowa 2011). Motions in limine
    are procedural rulings that “serve[] the useful purpose of raising and pointing
    out before trial certain evidentiary rulings the court may be called upon to make
    during the course of the trial.” Quad City Bank & Tr., 804 N.W.2d at 89 (quoting
    Twyford v. Weber, 
    220 N.W.2d 919
    , 923 (Iowa 1974)). If denied, the resisting
    party must object at the time the evidence is offered at trial to preserve a
    challenge to the evidence on appeal. Twyford, 
    220 N.W.2d at 924
    . If sustained,
    the ruling “excludes reference or introduction of this evidence until its
    10
    admissibility is determined by the trial court, outside the presence of a jury, in
    an offer of proof.” Quad City Bank & Tr., 804 N.W.2d at 89. Error arises when
    the evidence is introduced at trial, not from ruling on the motion in limine.
    As with most rules, there is an exception. “[I]f the ruling [on the motion in
    limine] reaches the ultimate issue and declares the evidence admissible or
    inadmissible, it is ordinarily a final ruling and need not be questioned again
    during trial.” State v. Alberts, 
    722 N.W.2d 402
    , 406 (Iowa 2006) (quoting State v.
    O’Connell, 
    275 N.W.2d 197
    , 202 (Iowa 1979) (en banc)). The ruling on Thoren’s
    motion in limine left no question about its finality, concluding: “[T]he State will
    be allowed the opportunity to present evidence of prior incidents of unwanted
    sexual touching during massages.” The district court reaffirmed its ruling in
    response to Thoren’s motion to reconsider and strike the identified witnesses:
    “The State’s proposed witnesses may offer testimony within the parameters of
    that [prior] ruling.” The ruling on the motion in limine preserved the evidentiary
    issues without the need for objections during trial.
    IV. Analysis.
    We consider two evidentiary issues on appeal: (1) the admission of
    evidence from the Board investigation as a violation of rules 5.402 and 5.403
    and (2) the admission of testimony from five prior clients as a violation of rule
    5.404(b).
    A. Board Investigation. Thoren claims the district court committed
    reversible error by admitting evidence about the Board’s investigation that led to
    the loss of his massage license. Tony Alden, the Board’s administrator, testified
    11
    about the process the Board uses to investigate complaints against licensees,
    different ways an investigation can be handled, and benefits to a licensee of
    avoiding a public hearing if he enters a settlement rather than contesting the
    complaint. The State introduced as an exhibit the Board’s combined statement
    of charges, settlement agreement, and final order related to its investigation into
    complaints filed against Thoren, and Mr. Alden explained the contents of the
    findings and the process for notifying the complainants about the Board’s
    resolution. The statement included the charge—not admitted by Thoren
    although the statement did not make that clear—that Thoren “touched a client’s
    breasts for a non-therapeutic purpose.” The State used this evidence to bolster
    the credibility of Thoren’s former clients, arguing the Board’s notification to each
    of them revealed the license revocation was based, at least in part, on each of
    their complaints.
    Thoren contends this evidence should have been excluded as unduly
    prejudicial under rule 5.403. “The court may exclude relevant evidence if its
    probative value is substantially outweighed by a danger of one or more of the
    following: unfair prejudice, confusing the issues, misleading the jury, undue
    delay, wasting time, or needlessly presenting cumulative evidence.” Iowa R. Evid.
    5.403. After finding the challenged evidence is relevant, we use a two-part test
    to determine whether it should nonetheless be excluded. State v. Buelow, 
    951 N.W.2d 879
    , 889 (Iowa 2020). “First, we ‘consider the probative value of the
    evidence.’ Second, we balance the probative value ‘against the danger of its
    prejudicial or wrongful effect upon the triers of fact.’ ” State v. Huston, 825
    
    12 N.W.2d 531
    , 537 (Iowa 2013) (citation omitted) (quoting State v. Cromer, 
    765 N.W.2d 1
    , 8 (Iowa 2009)). While we ordinarily defer to the district court’s
    balancing of these factors, State v. Buman, 
    955 N.W.2d 215
    , 221 (Iowa 2021),
    deference is difficult here where the district court did no balancing.
    Evidence is relevant when “it has any tendency to make a fact more or less
    probable than it would be without the evidence[] and . . . [t]he fact is of
    consequence in determining the action.” Iowa R. Evid. 5.401. Thoren argues the
    Board applied a lower burden of proof and considered different elements in its
    licensure investigation than required for the State to prove the criminal charges
    against him, rendering evidence from the Board’s investigation irrelevant and
    unfairly prejudicial. We reject Thoren’s argument that the different settings
    between an agency investigation and a criminal trial necessarily make evidence
    from the Board’s investigation irrelevant. “[R]elevance is a relatively low bar . . . .”
    State v. Neiderbach, 
    837 N.W.2d 180
    , 238 (Iowa 2013) (Appel, J., concurring
    specially). That Thoren was investigated by the Board using different standards
    does not in itself make evidence from the investigation irrelevant to the criminal
    charges.
    While the different standards do not necessarily make evidence from the
    Board’s investigation irrelevant, we have cautioned that introducing professional
    standards with lower burdens of proof in a criminal trial creates a significant
    risk of prejudice. See Buman, 955 N.W.2d at 221. In Buman, a nurse was charged
    with wanton neglect of a healthcare facility resident and the jury received
    evidence and instructions about the definition of accountability in the nursing
    13
    professional standards. Id. at 219–20. Even though a separate instruction
    informed the jury that violating the professional standards did not amount to a
    crime, introducing evidence about the lower standard that applied to violations
    of the professional standards risked confusing the issues and misleading the
    jury. Id. at 221. Here, the State presented considerable evidence through Alden’s
    testimony about the nature of the Board’s investigation without clarifying
    standards of proof at all. Thoren’s concerns about the differing standards are
    more properly assessed under the balancing test required by rule 5.403. We
    therefore compare the probative value of the challenged evidence to its
    prejudicial effect.
    According to the State, evidence from the Board investigation is probative
    because it “makes it more likely that Thoren committed sexual abuse when he
    touched the victim in the case at bar.” In other words, it provides propensity
    evidence. Rule 5.404(b) does not allow evidence to be used for this purpose. Iowa
    R. Evid. 5.404(b)(1). We likewise reject the suggestion that the Board evidence is
    probative of the victim’s credibility in this he said, she said case. Evidence about
    the Board’s investigation cannot be used when its sole relevance is to enhance
    the credibility of the victim. See State v. Mitchell, 
    633 N.W.2d 295
    , 299–300 (Iowa
    2001).
    The State asserts that the evidence was also relevant to show that Thoren
    had surrendered his massage license. This might have been a valid purpose for
    introducing some evidence from the Board’s investigation—if Thoren’s license to
    perform massages was somehow relevant to the criminal charges against him.
    14
    See Huston, 825 N.W.2d at 537 (cautioning that “ ‘the line of inadmissibility’ may
    be crossed when an investigator’s testimony goes ‘beyond the point of merely
    explaining why certain responsive actions were taken’ ” (quoting State v. Elliott,
    
    806 N.W.2d 660
    , 668 (Iowa 2011))). But Thoren was not charged with providing
    massage therapy services without a license—indeed, he was not required to be
    licensed to provide the craniosacral and Reiki therapy he performed on L.R. In
    any event, the State could have proved the simple fact that Thoren was not
    licensed to provide massage therapy without introducing evidence of the Board’s
    investigation and settlement.1
    The court of appeals found the evidence relevant to help show that Thoren
    “should have been aware of the line between proper and improper touching
    during a massage as a result of the prior sanction,” but we disagree that this is
    a proper purpose. By that reasoning, the state would be generally permitted to
    show evidence of prior convictions in order to demonstrate that the defendant
    “should have been aware” of the line between lawful and unlawful conduct.
    Nobody suggested or argued that Thoren was unaware of the proper line between
    proper and improper touching.
    1We   reject the State’s argument that “evidence that at the time of his session with L.R.,
    Thoren no longer had a massage license helped establish that he lacked a legitimate, lawful
    reason to rub L.R.’s genitals.” Even with a massage license, Thoren would have no legitimate
    reason to rub L.R.’s genitals. Further, Thoren has never asserted he had a legitimate reason to
    touch L.R.’s vaginal area—he denied touching her at all. This theory does not make evidence
    Thoren had surrendered his license relevant. See State v. Prine, 
    200 P.3d 1
    , 11 (Kan. 2009)
    (holding the state “could not open the door for itself” to prior bad acts evidence by putting up a
    theory contrary to the defendant’s theory at trial and then using the prior evidence to rebut the
    state’s theory).
    15
    The most the State can make of Thoren’s surrender of his license is the
    fact that his license number appeared on the website L.R. used to book her
    appointments, which theoretically could have relevance as context or
    background information to the extent it gave L.R. false assurances about
    Thoren’s credentials. Cf. State v. Nelson, 
    791 N.W.2d 414
    , 422–24 (Iowa 2010)
    (“[W]e will only allow the admission of other crimes, wrongs, or acts evidence to
    complete the story of the charged crime when a court cannot sever this evidence
    from the narrative of the charged crime without leaving the narrative
    unintelligible, incomprehensible, confusing, or misleading.”). But L.R. did not
    testify she relied on Thoren having a valid massage license when she booked her
    appointments. To the contrary, her chiropractor recommended she find a
    craniosacral practitioner, and her son recommended Thoren. That Thoren lost
    his massage license has little, if any, probative value to the State’s case. See
    Huston, 825 N.W.2d at 537 (“We see no probative value to the DHS determination
    the abuse report against Huston was founded. Whether or not the abuse report
    was deemed founded is irrelevant to any issue for the jury to decide.”).
    On the other side of the scale, the potential prejudice from the evidence
    about the Board’s investigation is quite high. Because administrative agencies
    are arms of the state, there is a risk that juries will treat agency findings as
    official, state-sanctioned results. Id. at 537–38 (“[W]e see a real danger the jury
    will be unfairly influenced by that agency finding, which gives the ‘imprimatur’
    of a purportedly unbiased state agency on a conclusion that Huston was guilty
    of child abuse.”). Allowing the State to introduce administrative findings as
    16
    evidence in a criminal trial creates a substantial risk that the jury will substitute
    the agency’s judgment for its own. Id. at 539; see also United States v. Vasquez,
    540 F. App’x 623, 626 (9th Cir. 2013) (affirming exclusion from defendant’s trial
    for assault evidence about prison administrative reports concluding inmates’
    fight was mutual, explaining “[t]he evidence, burden of proof, and ultimate
    penalty in the prison’s disciplinary action were not the same as those in the
    criminal case,” such that “admitting [the investigative reports] runs the risk of
    substantial unfair prejudice” (second alteration in original)); State v. Renfro, 
    157 A.3d 775
    , 777 (Me. 2017) (holding district court properly excluded from OWI trial
    evidence that administrative hearing examiner found that defendant’s breath
    test had been improperly administered and rescinded license revocation,
    explaining “[t]he court recognized the real potential for the jury to substitute the
    decision of the hearing examiner—reached in a different context, based on a
    different standard of proof, and applying a relaxed evidentiary standard—for its
    own weighing of the evidence admitted in the criminal trial to determine whether
    the State proved the elements of [OWI] beyond a reasonable doubt”). Although
    the Board’s investigation involved a complaint of sexual assault by a different
    victim, similar concerns exist that the jury could give undue weight to the
    Board’s findings.
    In light of these concerns, the use of evidence from the Board’s
    investigation to enhance the credibility of the witnesses and the victim created a
    substantial risk of unfair prejudice. See Huston, 825 N.W.2d at 537 (“In child
    abuse cases, much evidence will be ‘at least somewhat prejudicial. Exclusion is
    17
    required only when evidence is unfairly prejudicial [in a way that] substantially
    outweighs its probative value.’ ” (quoting Mitchell, 
    633 N.W.2d at 301
     (Neuman,
    J., dissenting) (alteration in original))). The Board’s combined statement of
    charges concluded that Thoren had touched a client’s breasts for nontherapeutic
    purposes. The jury could have understood this as an official, state-sanctioned
    finding that met the criminal standards when in reality it was the result of a
    settlement. The State emphasized the Board findings in its closing argument.
    That the Board was investigating events different from those involved in the
    criminal trial does not minimize the significant risk of the jury substituting the
    Board’s judgment in place of its own. Due to its minimal probative value and
    high risk of prejudice, the evidence from the Board investigation should have
    been excluded.
    In making this determination, we take guidance from our prior decision in
    State v. Huston, 
    825 N.W.2d 531
    . There we held it was reversible error in a child
    endangerment prosecution to allow evidence that the department of human
    services had investigated and issued a founded report of child abuse against the
    defendant. 
    Id.
     at 539–40. We reasoned there was a real danger that the jury
    would be unfairly influenced by this finding. 
    Id.
     at 537–38. Similar concerns exist
    here. The women who complained to the Board appeared at trial and testified.
    Thus, to the extent their testimony was relevant and that relevance was not
    outweighed by the danger of unfair prejudice (which we take up next), there was
    no need to introduce evidence about the Board’s investigation. The jury could
    evaluate those incidents based on the testimony of the women involved.
    18
    B. Prior Bad Acts Evidence. Thoren also argues that the testimony from
    his five former clients should have been excluded under rule 5.404(b)’s limits on
    the use of prior acts evidence. Specifically, Thoren argues the testimony was
    improperly used as propensity evidence and allowed the jury to conclude that
    because Thoren had sexually abused five former clients, he must have also
    sexually abused L.R.
    While relevant evidence is generally admissible unless its prejudice
    outweighs its probative value, see rules 5.402 and 5.403, rule 5.404(b) sets out
    a specific rule governing admissibility of evidence of other crimes, wrongs, or
    acts—i.e., prior bad acts evidence—and outlines the criteria for when it is
    admissible:
    (1) Prohibited use. Evidence of a crime, wrong, or other act is not
    admissible to prove a person’s character in order to show that on a
    particular occasion the person acted in accordance with the
    character.
    (2) Permitted uses. This evidence may be admissible for another
    purpose such as proving motive, opportunity, intent, preparation,
    plan, knowledge, identity, absence of mistake, or lack of accident.
    Iowa R. Evid. 5.404(b). Rule 5.404(b) “is a codification of our common-law rule
    that one crime cannot be proved by proof of another.” State v. Castaneda, 
    621 N.W.2d 435
    , 439 (Iowa 2001) (en banc). We have described rule 5.404(b) as a
    rule of exclusion: “unless the prosecutor can articulate a valid, noncharacter
    theory of admissibility for admission of the bad-acts evidence, such evidence
    should not be admitted.” State v. Sullivan, 
    679 N.W.2d 19
    , 28 (Iowa 2004)
    (overruling State v. McDaniel, 
    512 N.W.2d 305
     (Iowa 1994), to the extent it
    described the rule as one of inclusion rather than exclusion); see also State v.
    19
    Richards, 
    879 N.W.2d 140
    , 153 (Iowa 2016) (“Our decision today does not—and
    we do not intend it to—retreat from our well-established understanding that rule
    5.404(b) is a rule of exclusion.”).
    Notwithstanding rule 5.404(b), Iowa Code section 701.11 expressly allows
    propensity evidence in sexual assault cases. 
    Iowa Code § 701.11
    (1) (2018) (“In a
    criminal prosecution in which a defendant has been charged with sexual abuse,
    evidence of the defendant’s commission of another sexual abuse is admissible
    and may be considered for its bearing on any matter for which the evidence is
    relevant.”). In State v. Cox, we held section 701.11 violated a defendant’s due
    process rights to the extent “it permit[ted] admission of prior bad acts against an
    individual other than the victim in the case to demonstrate general propensity.”
    
    781 N.W.2d 757
    , 768–69 (Iowa 2010). Thus, evidence of prior sexual abuse
    involving a different victim is admissible in Iowa courts only if it fits within the
    rule 5.404(b) framework.2
    2We   recognize this puts us at odds with how federal courts and some other state courts
    treat evidence of prior acts involving different victims in sexual assault cases. Congress added
    rules 413 and 414 to the federal rules of evidence, which provide that in cases involving charges
    of sexual assault “evidence that the defendant committed a prior similar offense ‘may be
    considered for its bearing on any matter to which it is relevant,’ including the defendant’s
    propensity to commit such offenses.” United States v. Gabe, 
    237 F.3d 954
    , 959, (8th Cir. 2001)
    (quoting Fed. Rs. Evid. 413(a), 414(a)); see also United States v. Guardia, 
    135 F.3d 1326
    , 1329
    (10th Cir. 1998) (“Rule 413 supersedes Rule 404(b)’s restriction and allows the government to
    offer evidence of a defendant’s prior conduct for the purpose of demonstrating a defendant’s
    propensity to commit the charged offense.”). In Cox, we considered and rejected cases that upheld
    the constitutionality of Federal Rule of Evidence 413 against due process challenges. See 
    781 N.W.2d at 768
     (“Unlike the federal courts that have considered this issue, we do not believe
    evidence of prior bad acts can be admitted for the sole purpose of showing general propensity
    even if a trial judge considers the balancing test found in Iowa Code section 701.11.” (citing
    United States. v. LeMay, 
    260 F.3d 1018
    , 1026 (9th Cir. 2001))).
    A number of states have statutes or rules similar to section 701.11, which their courts
    apply to allow propensity evidence in some types of sexual abuse cases. See Basyle J. Tchividjian,
    Predators and Propensity: The Proper Approach for Determining the Admissibility of Prior Bad Acts
    Evidence in Child Sexual Abuse Prosecutions, 
    39 Am. J. Crim. L. 327
    , 340 (2012) (“Today,
    20
    Prior bad acts evidence is always propensity evidence in the sense that it
    has the “potential for the jury to draw the inference . . . that because the
    defendant did this kind of thing before, he did it on the charged occasion.” State
    v. Richins, 
    496 P.3d 158
    , 166 (Utah 2021). But rule 5.404(b) only excludes prior
    acts evidence if it “serves no purpose except to show the defendant is a bad
    person.” State v. Rodriquez, 
    636 N.W.2d 234
    , 239 (Iowa 2001) (emphasis added).
    When evidence of prior acts is relevant to a nonpropensity purpose, the evidence
    is admissible even though it is still propensity evidence. The Utah Supreme Court
    cogently explained:
    One way to think of rule 404(b)(2)’s list is as circumstances
    where we have concluded that evidence of past acts might be
    presented to the jury in a way that will direct the jury away from the
    improper propensity inference that rule 404(b) is designed to protect
    against. . . . [R]ule 404(b)(1) maintains that such an inference would
    be improper. But we nevertheless believe that when prior-acts
    evidence is introduced for another purpose under rule 404(b)(2), we
    can trust the jury to maintain its focus on the permissible, non-
    propensity-based inference.
    Richins, 496 P.3d at 166.
    Given the risk of improper use of prior acts evidence, we require the district
    court to engage in a three-part analysis when considering its admissibility. State
    v. Putman, 
    848 N.W.2d 1
    , 8–9 (Iowa 2014). The court must first “determine
    whether the evidence is relevant to a legitimate, disputed factual issue.” Id. at 9.
    Second, the evidence must provide “clear proof” that the defendant engaged in
    the act. Id. Mere speculation or hearsay is not enough, but “[t]estimony of
    approximately twenty-three states and the District of Columbia follow some form of the ‘lustful
    disposition’ exception created either by judicial application or legislative codification.”). The views
    supported by those jurisdictions are contrary to our holding in Cox, and we do not consider them.
    21
    credible witnesses can satisfy the clear-proof requirement.” Id. Finally, the court
    must consider whether the evidence’s “probative value is substantially
    outweighed by the danger of unfair prejudice to the defendant.” Sullivan, 
    679 N.W.2d at 25
    .
    To satisfy the first element, the party introducing the evidence must
    “articulate a tenable noncharacter theory of logical relevance” between that
    evidence and a legitimate, disputed factual issue. 
    Id. at 28
     (quoting Edward J.
    Imwinkelried, The Use of Evidence of an Accused’s Uncharged Misconduct to Prove
    Mens Rea: The Doctrines Which Threaten to Engulf the Character Evidence
    Prohibition, 
    51 Ohio St. L.J. 575
    , 585 (1990)); cf. State v. Reynolds, 
    765 N.W.2d 283
    , 290 (Iowa 2009) (“It is generally impossible to rule on the admissibility of
    prior bad acts before trial because their admissibility is so contingent on what
    ‘legitimate issue[s] [are] in the case.’ ” (alterations in original) (quoting Sullivan,
    
    679 N.W.2d at 25
    ), overruled on other grounds by Alcala v. Marriott Int’l, Inc., 
    880 N.W.2d 699
     (Iowa 2016)). Although not all-inclusive, rule 5.404(b)(2) includes a
    list of acceptable ways that prior bad acts evidence can be relevant to a legitimate
    issue: “proving motive, opportunity, intent, preparation, plan, knowledge,
    identity, absence of mistake, or lack of accident.” Iowa R. Evid. 5.404(b)(2).
    Here, the State generally identified motive, intent, and lack of mistake or
    accident to support admission of the prior bad acts evidence. The district court
    and the court of appeals both recited the same litany of noncharacter purposes
    for the prior acts evidence without addressing how each was actually at issue in
    22
    Thoren’s case.3 Even when prior bad acts evidence is admissible as relevant to a
    noncharacter purpose, its use should be limited to the specific purpose to which
    it is relevant. See Putman, 848 N.W.2d at 15–16 (affirming use of prior bad acts
    evidence where the jury was reminded by the state in closing and by the district
    court in jury instructions “on the narrow purposes for which th[e] evidence could
    be used”). Given the nature of the evidence and the real risk that the jury will
    use the evidence for an improper purpose, it is critical for the district court to
    identify the specific purpose or purposes to which the evidence is relevant. Two
    decades ago we cautioned district courts to give a limiting jury instruction even
    if not requested. See Rodriquez, 
    636 N.W.2d at
    243 n.2 (“In the future, trial
    courts would be wise to give such an instruction to the jury, even if not
    specifically requested by the defendant, whenever bad acts evidence is
    introduced for a limited purpose.”). The court cannot give a proper limiting
    instruction without first identifying which purposes are legitimately at issue. We
    therefore consider each of the bases offered to support use of the testimony from
    Thoren’s former clients. See, e.g., Putman, 848 N.W.2d at 10–11 (considering
    3Justice Mansfield’s special concurrence essentially does the same thing, glossing over
    the need to identify a legitimate disputed factual issue the jury must actually decide. The
    concurrence identifies “intent” as the disputed issue without explaining how intent is actually at
    issue. The entirety of the concurrence’s reasoning is that “evidence that Thoren intentionally
    committed nonconsensual sexual touching on one or more clients could, under some
    circumstances, tend to prove he intended to commit—and therefore did commit—a sexual
    assault against L.R.” That’s not a dispute over intent; that’s propensity. Without explaining how
    intent is even at issue, the concurrence prefers to slide past the first step of our 5.404(b) analysis
    and jump to the last step by applying a rule 5.403-type balancing test. That “[m]ost trial judges
    recognize this point intuitively” and base their rule 5.404(b) decisions on how similar the prior
    acts and timing are to the current charge highlights the district court’s error in this case. The
    concurrence’s analysis replaces our carefully crafted rule 5.404(b) regime with the rule 5.403
    balancing test most familiar to district court judges. While easier, it is not better. Nor is it allowed
    by our rules or our precedent.
    23
    each issue offered by the state to support prior bad acts, including motive and
    identity of the perpetrator); Cox, 
    781 N.W.2d at
    769–71 (considering each issue
    offered by the state, including opportunity or preparation, common scheme or
    plan, modus operandi, and motive or intent).
    1. Intent or motive. Although the district court found the testimony was
    probative of Thoren’s intent and motive, it failed to first address whether intent
    or motive was actually at issue. See State v. Taylor, 
    689 N.W.2d 116
    , 124 (Iowa
    2004) (“It is first essential to identify whether intent was at issue in the case.”);
    Sullivan, 
    679 N.W.2d at 25
     (requiring evidence be relevant “to a legitimate issue
    in the case other than a general propensity to commit wrongful acts” (emphasis
    omitted)). We begin our analysis there.
    While they are often lumped together, motive and intent are not merely
    synonyms for the same concept. “Motive is the impetus that supplies the reason
    for a person to commit a criminal act.” Putman, 848 N.W.2d at 10 (emphasis
    omitted) (quoting 2 Jack B. Weinstein & Margaret A. Berger, Weinstein’s Federal
    Evidence § 404.22[3], at 404–119 to –120 (Joseph M. McLaughlin ed., 2d. ed.
    2014)). Although motive is rarely an element of an offense, prior bad acts may
    be relevant to provide context and help explain why the defendant committed the
    charged acts. In State v. Richards, evidence of the defendant’s drinking problem
    and his ex-wife’s pressure for him to stop provided “a reason why Richards would
    have killed his ex-wife to whom he had recently become reengaged.” 
    809 N.W.2d 80
    , 92 (Iowa 2012). In State v. Barnes, evidence of the defendant’s desire to “get
    back at” his sister helped explain, or provide a motive, for why he stole her
    24
    property. 
    791 N.W.2d 817
    , 827 (Iowa 2010). And in State v. Nelson, evidence of
    the defendant’s prior drug dealing was relevant in a first degree murder case to
    explain why he would shoot and kill someone he thought to be an undercover
    narcotics officer—to avoid apprehension. 791 N.W.2d at 425–26.
    But evidence of prior inappropriate sexual contact with other clients does
    not help explain Thoren’s motive in sexually abusing L.R. Unlike Richards and
    Barnes, the fact that Thoren had previously inappropriately touched other
    massage clients has no bearing on his relationship with L.R. Nor do Thoren’s
    past abuses give him a reason for later sexually abusing L.R. In this context,
    when the state offers evidence of prior sex acts to prove motive, it is really offering
    it to prove intent without showing that intent is actually at issue. Used in this
    way, the testimony shows only that Thoren has a generalized motive to sexually
    abuse his massage clients and so his motive when treating L.R. was to sexually
    abuse her. This rationale overgeneralizes the relevancy of motive to a criminal
    prosecution, disguising what is really just propensity evidence. “The motive for
    [sexual assault] crimes [is] obviously and inherently sexual, so any purported
    use to that end [i]s pretextual or inadequate.” Jackson v. Commonwealth, No.
    2019–SC–0597–MR, 
    2021 WL 2618168
    , at *7 (Ky. June 17, 2021) (Minton, C.J.,
    concurring in result only).4 The testimony should not have been admitted to
    4This  is the rational Justice Mansfield uses in his special concurrence to conclude the
    prior conduct is relevant to Thoren’s intent generally to commit a sexual assault. A defendant
    charged with a sex crime can always be said to have a motive or intent to commit a sex act.
    However, allowing the state to use that intent as the basis for admitting evidence of prior sex
    acts when intent is not a legitimate disputed issue for the jury to decide would allow the state to
    always offer evidence of prior sex acts with other victims in sex abuse cases, a result we rejected
    in Cox. 
    781 N.W.2d at 771
    .
    25
    prove Thoren’s motive. See, e.g., Putman, 848 N.W.2d at 10 (“The perpetrator’s
    motive for sexually abusing L.R. was not a legitimate or disputed issue in this
    case.”); cf. State v. Goodson, 
    958 N.W.2d 791
    , 801 (Iowa 2021) (affirming the
    admission of prior sexual abuse involving the same victim because “[t]he nature
    of the relationship between A.T. and Goodson was critical in determining the
    motive”).
    The State can offer evidence from Thoren’s former clients to prove intent
    only if Thoren’s intent is a legitimate disputed issue the jury needs to decide.
    Intent can be at issue when it is a disputed element of the crime. In State v.
    Elston, evidence that the defendant viewed pornographic images of prepubescent
    girls was probative of his intent where he was charged with indecent contact with
    a child. See 
    735 N.W.2d 196
    , 200 (Iowa 2007). But that charge required the state
    to prove the defendant touched the victim “for the purpose of arousing or
    satisfying the sexual desires of either [himself or A.E.]” under Iowa Code section
    709.12, putting intent directly into play. 
    Id.
     (alteration in original). Similarly, in
    State v. Allen, we allowed testimony about sexual acts that a hypnotherapist
    committed against a former client because the prior acts directly related to the
    “pattern or practice or scheme of conduct” element of the charged offense. 
    565 N.W.2d 333
    , 336–39 (Iowa 1997). Allen was charged with sexual exploitation by
    a counselor under Iowa Code section 709.15(2) (1993), a class “D” felony.5 Allen,
    5The defendant was charged with a class “D” felony under the 1993 version of the statute.
    Allen, 
    565 N.W.2d at 335
    . A counselor committed a class “D” felony if the counselor engaged in
    a “pattern or practice or scheme of [sexual] conduct” with clients. 
    Iowa Code § 709.15
    (1)(f)(1)–(2).
    On the other hand, engaging in sexual conduct with only a single client was either an aggravated
    misdemeanor or serious misdemeanor, depending on whether the client was “emotionally
    26
    
    565 N.W.2d at 335
    . That crime occurs when there is a “pattern or practice or
    scheme of conduct” of engaging in sexual conduct with a client “for the purpose
    of arousing or satisfying the sexual desires of the counselor” or the client. 
    Iowa Code § 709.15
    (1)(f) (emphasis added). An isolated incident would only have
    allowed the state to charge Allen with the lesser offense of engaging in sexual
    conduct with a client. 
    Id.
     § 709.15(3)–(4). We affirmed the district court’s
    admission of the prior client’s testimony because it tended to show the required
    pattern or scheme of conduct in the defendant’s behavior. Allen, 
    565 N.W.2d at 339
    . In contrast, in State v. Putman we held that evidence of “[t]he perpetrator’s
    motive for sexually abusing [the victim] was not a legitimate or disputed issue in
    this case” because “[t]he State was not required to prove Putman’s state of mind
    as an element of the crime.” 848 N.W.2d at 10. Here, the State charged Thoren
    with one count of sexual abuse in the third degree by forcing the victim to
    perform a sex act against her will or by force. This is a general-intent crime so
    the State is not required to show intent as an element of the charge. State v.
    McNitt, 
    451 N.W.2d 824
    , 824 (Iowa 1990).
    Although the jury was also instructed on the lesser included offense of
    assault with intent to commit sexual abuse, so that intent was an element, intent
    still needs to be disputed. Intent is often a disputed issue for assault with intent
    to commit sexual abuse—essentially an incomplete sex abuse crime—where the
    state must prove the defendant had the specific intent to commit a sex act even
    dependent.” 
    Id.
     § 709.15(1)(f)(2)–(3), .15(3), .15(4). Since the state charged the defendant with a
    class “D” felony, the pattern of conduct became a disputed issue that the state needed to prove.
    27
    though the sex act was not completed. In that instance, the state must prove
    something the defendant intended to do but didn’t. See State v. Casady, 
    491 N.W.2d 782
    , 785–86 (Iowa 1992) (en banc) (allowing evidence defendant had
    previously forced two other women into his car and sexually assaulted them as
    evidence of the defendant’s intent when he unsuccessfully tried to pull a
    thirteen-year-old girl into his car); State v. Spargo, 
    364 N.W.2d 203
    , 205–06, 209
    (Iowa 1985) (allowing evidence defendant had invited other boys to his
    apartment, engaged them in philosophical discussions about life and sex, and
    sexually abused them as evidence of the defendant’s intent to commit a sex act
    with another boy the defendant similarly engaged but was stopped before
    completing a sex act).
    Yet, the elements of a charged offense do not automatically become
    legitimate, disputed factual issues in a case. We have cautioned that “[e]vidence
    of an unconnected prior crime is always evidence of propensity and never
    evidence of a specific intent to commit the crime charged.” Taylor, 
    689 N.W.2d at
    128 n.6 (quoting Sullivan, 
    679 N.W.2d at 26
    ). Federal courts have recognized
    as much in allowing very similar evidence under rule 413, while acknowledging
    it would be excluded under rule 404(b). See United States v. Guardia, 
    135 F.3d 1326
    , 1328–29 (10th Cir. 1998) (allowing evidence under rule 413, because “[i]f
    believed, the Rule 413 evidence in this case would demonstrate that the
    defendant has a propensity to take advantage of female patients by touching
    them in a salacious manner and making comments while doing so. Because the
    defendant’s propensity is to engage in conduct which closely matches that
    28
    alleged in this case, the evidence is probative of his guilt.”). “Where intent is
    merely a formal issue derived from the elements of the offense, and is not being
    controverted, the argument for receiving [other acts] evidence falters.” Richards,
    879 N.W.2d at 147 (alteration in original) (quoting Thompson v. United States,
    
    546 A.2d 414
    , 422 (D.C. 1988)).
    Because many crimes require some showing of mens rea, admitting prior
    bad acts testimony every time a charge includes some notion of specific intent
    would eviscerate rule 5.404(b). 
    Id.
     at 147–48 (“Sullivan’s emphasis on the
    question whether the other acts evidence is relevant to a ‘legitimate issue’ is
    significant. That emphasis is significant because ‘the jury is less likely to
    concentrate on propensity if there is a bona fide dispute on mens rea.’ ” (citation
    omitted) (quoting State v. Henderson, 
    696 N.W.2d 5
    , 16 (Iowa 2005) (Lavorato,
    C.J., concurring specially))). Thus, even if intent is an element of the lesser
    included offense, prior bad acts evidence is not relevant unless intent is actually
    in dispute. See 
    id.
    Although the lesser included offense of assault with intent to commit a sex
    act was instructed to the jury, the State made no effort to prove intent at trial
    and Thoren raised no defenses about intent. Intent and motive do not become
    controverted issues at trial simply because a lesser included offense has some
    mens rea element. See State v. Gibson, 
    52 P.3d 339
    , 346 (Kan. Ct. App. 2002)
    (“The crucial distinction in admitting evidence of other crimes . . . on the issue
    of intent is not whether the crime is a specific or general intent crime, but
    whether the defendant has claimed that his or her acts were innocent.” (citation
    29
    omitted)). As tried, the testimony was not relevant to proving intent or motive
    simply because the lesser included charge had an intent element. The district
    court abused its discretion in allowing the State to use testimony from Thoren’s
    former clients to prove motive or intent.
    2. Lack of accident. The State also argues the former clients’ testimony
    helped prove that Thoren did not accidentally touch L.R. and that he had no
    therapeutic reason to touch her vaginal area. Prior bad acts evidence can be
    admitted to show the touching or assault was not accidental. See Taylor, 
    689 N.W.2d at
    125 (citing Stewart v. State, 
    730 So. 2d 1203
    , 1234 (Ala. Crim. App.
    1997)). Accident is at issue when a defendant claims he touched intimate parts
    of the victim’s body either accidentally, such as while playing, or for a legitimate
    reason, such as bathing or giving a medical treatment to a child. See, e.g., United
    States v. Mosquito, 
    532 F. Supp. 3d 1074
    , 1080 (E.D. Okla. 2021) (allowing
    evidence of prior incidents under rule 404(b) to “contradict defendant’s
    explanation . . . that he merely intended to change the child’s diaper”); State v.
    Brammer, 
    614 S.W.3d 18
    , 28 (Mo. Ct. App. 2020) (evidence of defendant’s prior
    conviction for sex abuse against a minor was admissible to counter defendant’s
    claim he accidentally brushed fourteen-year-old’s breast while they were riding
    a four-wheeler).
    But Thoren never argued that he accidentally touched L.R. or that he
    touched her vaginal area for therapeutic purposes. Cf. Elston, 
    735 N.W.2d at 200
    (concluding evidence defendant had accessed pornographic pictures of young
    girls was especially probative after defense attorney asked child victim on cross-
    30
    examination if it was possible defendant accidentally touch her between her
    clothed legs). He flat-out denied ever touching L.R. below her belly button. Just
    as the elements of a charge are not automatically disputed issues, the
    explanation for Thoren’s inappropriate touching is not automatically considered
    a disputed issue simply because Thoren could have raised it as a defense. The
    reason Thoren touched L.R.’s vaginal area was never a legitimate issue at trial;
    the disputed issue was whether the touching actually occurred. The district
    court abused its discretion in allowing the State to use the former clients’
    testimony to prove a lack of accident.
    3. Credibility. The State, district court, and court of appeals also
    considered the former clients’ testimony relevant to credibility on the theory that
    evidence of similar inappropriate actions in similar settings is important in a he
    said, she said case because it bolsters the victim’s credibility and makes it more
    probable that the defendant is being dishonest. But we have rejected use of prior
    bad acts evidence when used solely to bolster the victim’s credibility. See Mitchell,
    
    633 N.W.2d at 300
     (“If the State is allowed to prevail on its theory that there is
    an independent relevancy to bad-acts evidence for credibility purposes, this
    doctrine could be invoked in nearly every criminal case.”). Allowing a jury to
    consider the evidence for credibility purposes is essentially allowing it to use it
    for propensity purposes—he did it before so he must be lying about not doing it
    now. Prior bad acts evidence cannot be used solely to bolster the victim’s
    credibility, especially in a he said, she said case. 
    Id.
    31
    4. Modus operandi, common plan or scheme. Although not argued on
    appeal, we briefly address two other arguments made by the State below—that
    the prior acts could be admissible to show either Thoren’s modus operandi or
    his plan to use his position as a therapist to sexually abuse his clients. See State
    ex rel. Dickey v. Besler, 
    954 N.W.2d 425
    , 432 (Iowa 2021) (holding we may affirm
    on any basis urged below); In re M.W., 
    876 N.W.2d 212
    , 221 (Iowa 2016)
    (recognizing our obligation to affirm where any proper basis exists to do so).
    “Modus operandi is ‘ “a distinct pattern or method of procedure thought to
    be characteristic of an individual criminal[ ] and habitually followed by him” ’ ”
    that is typically relevant to prove identity or lack of consent. Cox, 
    781 N.W.2d at 770
     (alteration in original) (quoting State v. Plaster, 
    424 N.W.2d 226
    , 231 (Iowa
    1988) (en banc)); see also Putman, 848 N.W.2d at 11 (“To permit the inference
    that similar acts establish the same person committed both acts, we have
    required that the other acts must be ‘strikingly similar’ or of a ‘unique nature.’ ”
    (quoting In re J.A.L., 
    694 N.W.2d 748
    , 753 (Iowa 2005))). But neither identity nor
    consent was at issue here. “[T]o expand modus operandi to all similar crimes
    without requiring that they be offered to demonstrate a legitimate issue would
    simply admit prior bad acts to show propensity.” Cox, 
    781 N.W.2d at 770
    .6
    6Justice Mansfield’s reliance on Putman ignores that the culprit’s identity was disputed
    there, which is what made modus operandi relevant. 848 N.W.2d at 13. Likewise, the special
    concurrence’s reliance on Allen as the “most analogous case factually” to this case ignores that
    Allen involved an entirely different offense that required the state to prove a “pattern or practice
    or scheme of conduct” of engaging in sexual conduct with more than one client “for the purpose
    of arousing or satisfying the sexual desires of the counselor” or the client. 
    565 N.W.2d at 337
    (quoting 
    Iowa Code § 709.15
    (1)(f)). To the extent Allen supports allowing evidence of unrelated
    but similar acts as generally “relevant to establishing such factors as motive, intent, opportunity,
    and plan,” id. at 339, it is contrary to the stricter standard we have since developed for allowing
    5.404(b) evidence in Cox, a case not even cited by the concurrence. The concurrence pines for
    32
    “Common scheme or plan means more than the commission of two similar
    crimes by the same person.” Id. at 769 (quoting State v. Wright, 
    191 N.W.2d 638
    ,
    641 (Iowa 1971)). “Although not an element of an offense, plan suggests mental
    preparation and a decision to go forward with criminal activity. The physical acts
    accompanying the plan must bear some relationship to completion of the larger
    offense.” 7 Laurie Kratky Dorè, Iowa Practice Series Evidence § 5.404:6, at 274
    (2018–19 ed. 2018) [hereinafter Dorè]. “Evidence of other crimes should never be
    admitted when it appears that the defendant committed them wholly
    independent of the one for which he is then on trial. There must be some
    connection between the crimes.” Cox, 
    781 N.W.2d at
    769–70 (citation omitted)
    (quoting Wright, 
    191 N.W.2d at 641
    ).
    Although some jurisdictions broadly apply the common scheme or plan
    basis for allowing prior acts evidence, see 22B Charles Alan Wright & Kenneth
    W. Graham, Jr., Federal Practice and Procedure § 5252, at 265 (2017) [hereinafter
    Wright & Graham] (noting the danger when courts read “plan” in rule 404(b)
    broadly “as a blueprint” rather than narrowly “as a subdivision map,” where
    “such use will lead the jurors to suppose that they can convict defendant if they
    find he has bad character”), we heed our precedent recognizing the purpose of
    this exception to the propensity exclusion rule is limited to allowing evidence
    that is part of a larger, related plan of illegal activity. See 7 Dorè § 5.404:6, at
    274–75 (“In State v. Cox, the Iowa Supreme Court cautioned against reading the
    simpler days when showing general relevance to the litany of 5.404(b)(2) factors was enough, but
    our precedent requires more. The State has not asked us to overturn Cox, and we will not take
    up that cause sua sponte.
    33
    ‘common plan or scheme’ exception too broadly.”); see also 22B Wright &
    Graham § 5252, at 277 n.47 (concluding Professor Dorè “state[d] [the] rule
    properly” in 7 Iowa Practice Series § 5.404:6). We agree with Professor Leonard
    that “if not carefully policed, this exception can serve to admit a series of crimes
    whose most obvious relationship is that they were all committed by the
    defendant and whose strongest tendency is to prove the defendant’s character
    for crime rather than his planned course of conduct.” David P. Leonard, The New
    Wigmore: Evidence of Other Misconduct and Similar Events § 9.2.2, at 644–47
    (Richard D. Friedman ed., 2d ed. 2019) [hereinafter Leonard] (quoting 22 Wright
    & Graham § 5244, at 500 (1978)) (discussing criticisms of a broad application of
    the common scheme or plan basis for admitting 404(b) evidence). The testimony
    from Thoren’s five former clients spans nearly ten years and involves wholly
    independent acts and unrelated victims, precluding the evidence from meeting
    our common scheme or plan jurisprudence.
    5. Lack of victim’s mistake. Whether lack of mistake was a legitimate,
    disputed issue at trial is a closer call. Mistake usually arises in the context of
    the defendant’s mistake—was the defendant’s conduct the result of a mistake
    rather than criminal behavior. See, e.g., United States v. Tanner, 
    61 F.3d 231
    ,
    237 (4th Cir. 1995) (witness’s testimony that pharmacist illegally refilled her
    prescriptions over five year period was relevant to rebut claim of mistake in
    prosecution for selling prescription drugs without a valid prescription); Dean v.
    Sanders County, 
    204 P.3d 722
    , 728 (Mont. 2009) (evidence of employee’s
    marijuana use and connection to known drug dealer’s marijuana business
    34
    admissible to rebut employee’s claim in wrongful termination case that she did
    not realize payments were for illegal drugs when described only as “weed”). A
    defendant who claims to have acted by mistake puts his intent into issue—did
    he act mistakenly or intentionally? See Leonard § 7.2.2, at 474 (“Most codified
    versions of the uncharged misconduct rule, including Federal Rule of Evidence
    404(b), list ‘intent’ and ‘absence of mistake or accident’ separately. It is
    unnecessary to do so. ‘Absence of mistake or accident’ is generally synonymous
    with intent.”).
    But rule 5.404(b)(2)’s reference to mistake or accident is not strictly limited
    to a mistake or accident by the defendant. See, e.g., People v. Deeney, 
    193 Cal. Rptr. 608
    , 612–13 (Ct. App. 1983) (recognizing that rule 404(b)’s reference to
    mistake or accident generally refers to whether the defendant’s actions were
    mistaken or accidental but also recognizing that even though “there was no issue
    regarding whether [the defendant’s] conduct was accidental or mistaken,”
    “evidence of prior bad acts may properly be admitted to . . . overcome any
    material matter sought to be proved by the defense” in addressing whether a
    husband’s prior abuse of his wife was admissible to rebut his claim that his wife
    was an alcoholic and often fell to show her death was an accident). In some
    circumstances mistake can also arise in the context of the victim’s mistake when
    the defendant presents specific evidence to support a theory that the victim was
    mistaken about what happened, say because the victim was hallucinating or, as
    here, was experiencing phantom touches associated with a Reiki treatment so
    that she only imagined what she felt. See, e.g., Koo v. State, 
    640 N.E.2d 95
    , 100–
    35
    02 (Ind. Ct. App. 1994) (holding evidence from two former patients that physician
    drugged and raped them during medical exam admissible, under newly enacted
    Indiana Rule of Evidence 404(b), to rebut defendant’s claim victim hallucinated
    the claimed sexual encounter); State v. Lough, 
    889 P.2d 487
    , 495 (Wash. 1995)
    (en banc) (“[E]vidence of prior druggings and rapes [by the defendant] was
    relevant to the specific issue of whether the conduct on which the charge was
    based actually occurred or was, as the Defendant contended, a fabrication or
    mistake by the victim.”). In this context, evidence of the defendant’s prior actions
    is not relevant to a mistake that goes the defendant’s intent but is relevant to
    rebut a specific-defense theory of mistake by the victim.
    Thoren’s theory at trial was that L.R. imagined he touched her vaginal area
    during the Reiki therapy when in fact he never touched below her belly button.
    Both sides called expert witnesses at trial to discuss Reiki therapy and the
    possibility of experiencing “phantom touches” during a Reiki session. According
    to witnesses from both the State and Thoren, clients often feel a sensation of
    being touched during Reiki treatments in places where no physical contact has
    occurred. This testimony was essential to Thoren’s defense that he did not touch
    L.R. below her belly button and that she imagined the rubbing of her vaginal
    area. Given the significant trial testimony devoted to describing Reiki treatment
    and phantom touches, whether L.R. mistakenly believed that Thoren touched
    her vaginal area was a legitimate and disputed issue at trial.
    With lack of mistake at issue, we must determine whether the testimony
    from Thoren’s five former clients was relevant. Evidence is relevant if “it has any
    36
    tendency to make a fact more or less probable than it would be without the
    evidence[] and . . . [t]he fact is of consequence in determining the action.” Iowa
    R. Evid. 5.401. In State v. Lough, the Washington Supreme Court allowed
    evidence that the paramedic defendant had drugged and raped other victims as
    relevant to whether the victim was mistaken about what had happened, noting
    her credibility was difficult to assess given her foggy memory from being drugged.
    889 P.2d at 495.7 And in Koo v. State, the Indiana Court of Appeals allowed
    testimony from two former patients of the defendant-physician that he had
    drugged and raped them during physical exams to rebut the defendant’s
    evidence that the victim’s use of prescription drugs could have caused sexual
    hallucinations. 
    640 N.E.2d at
    101–02. The defendant questioned pharmacists
    about the frequency of the victim’s refills for Valium and Codeine in the months
    leading up to the alleged incident, the hallucinatory effects of those drugs when
    used together, and whether the victim’s shaking hands after the incident could
    indicate she was going through withdrawal. See 
    id.
     He also presented evidence
    that the doctor’s office looked different than the victim described and then used
    that evidence in closing argument to support his argument the victim had
    hallucinated the events. 
    Id.
     Given the extensive evidence here about phantom
    touches during Reiki sessions, evidence that Thoren touched other clients
    7InLough, the court concluded evidence from the former victims was also admissible to
    show a common design or plan. 889 P.2d at 494. Although the evidence here does not meet our
    common design or scheme jurisprudence, see Cox, 
    781 N.W.2d at
    769–70, we nonetheless find
    Lough convincing to the extent it addresses a victim’s mistake.
    37
    inappropriately during therapy sessions is relevant to rebut Thoren’s claim that
    L.R. experienced phantom touching rather than felt Thoren’s hand.
    Even when prior bad acts may be relevant to a legitimate and disputed
    factual issue at trial, we are cautious to only allow such evidence that is both
    “relevant and necessary.” Cox, 
    781 N.W. 2d at 768
    . In Koo, the court allowed
    evidence from two former patients who described details similar to those
    described by the victim, including that the defendant taped the examining sheet
    to an overhead lamp so they couldn’t see what he was doing, giving credence to
    the victim’s similar story. 
    Id.
     at 100–01. We recognize that the testimony from
    Thoren’s former clients differs from his abuse of L.R. in some significant ways.
    The former clients testified they were inappropriately touched during a
    traditional massage that necessarily involved direct physical contact. L.R.
    claimed she was abused during a Reiki session, which, as described by witnesses
    presented by both parties, differs from the type of physical contact received
    during a traditional massage. The former clients were all unclothed for their
    massages, while L.R. was fully clothed. The disputed issue is whether L.R.
    imagined the contact by experiencing phantom touching, which was not an issue
    for the former clients who were clearly touched. In addition, the events were not
    close in time, spanning a period of nearly ten years.
    We nonetheless find the evidence relevant given the unique nature of this
    sexual abuse case involving significant evidence about alternative healing
    modalities and phantom touches. Thoren claimed that L.R. imagined the
    physical touching she testified she felt—even claiming L.R. stated she
    38
    experienced the deepest orgasm she had ever felt. L.R., whose eyes were covered,
    described the events differently, but not in a way that totally contradicted
    Thoren’s theory. Even with the differences between L.R.’s Reiki treatment and
    the former clients’ massage sessions, evidence that Thoren crossed the line by
    inappropriately touching clients in a sexual manner during other therapy
    sessions might make a difference to a reasonable fact finder on the issue of
    whether L.R. could have imagined the physical contact she described. See
    Putman, 848 N.W.2d at 8–9 (“The general test for relevancy is ‘whether a
    reasonable [person] might believe the probability of the truth of the consequential
    fact to be different if [the person] knew of the proffered evidence.’ ” (alterations
    in original) (quoting Plaster, 
    424 N.W.2d at 229
    )). The testimony from Thoren’s
    former clients about his inappropriate conduct was relevant to whether Thoren
    rubbed his hand over L.R.’s vaginal area as she described, a fact of consequence
    given the unusual facts of this case.
    Having concluded the evidence was relevant to a disputed issue, we next
    determine whether its “probative value is substantially outweighed by the danger
    of unfair prejudice to the defendant.”8 Sullivan, 
    679 N.W.2d at 25
    . We consider
    a number of factors, including:
    the need for the evidence in light of the issues and the other evidence
    available to the prosecution, whether there is clear proof the
    defendant committed the prior bad acts, the strength or weakness
    8Thoren   does not dispute that the former clients’ testimony satisfies the requirement for
    “clear proof” that he committed the prior conduct, the second step required for allowing bad acts
    evidence. See Richards, 879 N.W.2d at 152 (“[A] victim’s testimony, standing alone, satisfies the
    requirement of clear proof.” (alteration in original) (quoting State v. Jones, 
    464 N.W.2d 241
    , 243
    (Iowa 1990))).
    39
    of the evidence on the relevant issue, and the degree to which the
    fact finder will be prompted to decide the case on an improper basis.
    Putman, 848 N.W.2d at 9–10 (quoting Taylor, 
    689 N.W.2d at 124
    ).
    “Weighing probative value against prejudicial effect ‘is not an exact
    science,’ so ‘we [generally] give a great deal of leeway to the trial judge who must
    make this judgment call.’ ” Id. at 10 (quoting State v. Newell, 
    710 N.W.2d 6
    , 20–
    21 (Iowa 2006)). Here, the district court made its call before trial in its limine
    ruling at a time when it lacked a full appreciation of the evidence that would be
    presented at trial. Whether prior bad acts evidence should be admitted is a fact-
    specific determination that should generally be made within the context of the
    other evidence presented at trial when the district court can adequately weigh
    the need for the evidence. See Reynolds, 
    765 N.W.2d at 290
    . We caution district
    court judges to conduct their balancing analysis at a point when they have all
    the relevant evidence to ensure they understand the probative value of the
    offered evidence and its prejudicial effect can be fully appreciated.
    In addressing the need for the evidence, we note that the State put on its
    own witness experienced in Reiki therapy as part of its case-in-chief, and the
    defense put on two Reiki practitioners as well as two of Thoren’s current clients
    who had received Reiki and craniosacral treatments from him, describing the
    phantom touching Thoren claimed L.R. experienced. L.R., whose eyes were
    covered, admittedly had to rely on her other senses in claiming that Thoren
    physically rubbed her vaginal area with his hand—a necessary element of the
    sex abuse charge. For the most part, testimony from the former clients was
    relatively short and to the point and focused on how Thoren inappropriately
    40
    touched each of them during a massage session, which is what made the
    evidence relevant to the current prosecution. The need for the evidence, coupled
    with the limited testimony about the prior conduct, balances in favor of allowing
    testimony from Thoren’s former clients.
    However, two witnesses testified beyond the scope of what we have found
    to be the relevant purpose for the evidence, that is, whether L.R. might have been
    mistaken about what she felt. Thoren’s sister-in-law, S.T., testified about a
    massage she received from Thoren in his home in 2009, nine years before the
    events for which Thoren was convicted. In addition to testifying that he used a
    vibrating machine directly over her clitoris, she also testified about how Thoren’s
    actions violated the trust she had in Thoren as her brother-in-law and the
    damage it did to their relationship. The facts that S.T. had a personal
    relationship with Thoren, received a message in his home rather than in a clinical
    setting, and lost trust in her brother-in-law take S.T.’s testimony well beyond the
    limited purpose for which the prior acts evidence was relevant to this case.
    Another former client, M.L., testified that during a massage in 2012
    Thoren massaged farther up the side of her breast than was appropriate and
    that he was panting and breathing heavy while doing so as if he was sexually
    aroused. Whether or not Thoren was panting and aroused has no relevance to
    whether L.R. felt Thoren’s hand or experienced phantom touching. This
    testimony was not needed to support the proper purpose for the evidence but
    risked giving the jury an improper basis on which to decide the case. See Putman,
    848 N.W.2d at 9–10 (considering the strength or weakness of the prior act
    41
    evidence on the relevant issue against the risk that the prior act will prompt the
    jury to decide the case on an improper basis). The district court abused its
    discretion in allowing S.T. and M.L. to testify.9
    On balance, the probative value of the testimony from the other three
    former clients was not substantially outweighed by the danger of unfair prejudice
    to Thoren, and the district court did not abuse its discretion in admitting their
    testimony as relevant to the issue of whether L.R. was mistaken. See Sullivan,
    
    679 N.W.2d at 25
    .
    V. Harmless Error. We next determine whether the district court’s errors
    are reversible. When a district court commits a nonconstitutional error by
    admitting evidence it should have excluded, we do not reverse the defendant’s
    conviction if the error was harmless. The test for harmless error “is whether the
    rights of the objecting party have been ‘injuriously affected by the error’ or
    whether the party has ‘suffered a miscarriage of justice.’ ” State v. Parker, 
    747 N.W.2d 196
    , 209 (Iowa 2008) (quoting Sullivan, 678 N.W.2d at 29).
    Overwhelming evidence of the defendant’s guilt can make the error harmless. Id.
    at 210. “We presume prejudice and ‘reverse unless the record affirmatively
    9We  do not prejudge what evidence should be allowed on retrial because similar testimony
    may be appropriate depending on why it is introduced and how it is used. See State v. Mitchell,
    
    670 N.W.2d 416
    , 422 (Iowa 2003) (holding, in appeal from second trial following remand after
    district court improperly admitted prior acts evidence solely to bolster victim’s credibility, that
    the court properly admitted the same evidence on retrial to rebut the defendant’s conspiratorial
    theory presented in second trial); see also Cox, 
    781 N.W.2d at 771
     (“Although it does not appear
    the testimony of A.L. and T.C. was relevant to any ‘legitimate issue’ and therefore was not
    appropriately admitted, we express no opinion regarding whether the evidence may become
    relevant to a legitimate issue and be admissible on retrial.”).
    42
    establishes otherwise.’ ” Reynolds, 
    765 N.W.2d at 292
     (quoting Sullivan, 
    679 N.W.2d at 30
    ).
    Our review of the trial proceedings convinces us that the district court’s
    errors were not harmless. Although some of the evidence about Thoren’s prior
    acts was admissible to rebut Thoren’s theory that L.R. was mistaken about what
    she felt, the district court’s failure to identify the specific purpose for which the
    evidence could be used prejudiced Thoren. First, it allowed evidence about the
    Board’s investigation and testimony from S.T. and M.L. that went beyond the
    specific issue to which the prior act evidence was relevant. Second, it allowed the
    State to use even the properly admitted evidence beyond its limited purpose of
    rebutting Thoren’s theory that L.R. experienced phantom touching. The district
    court painted with too broad a brush in ruling that all of the evidence could come
    in for the purposes of showing intent, motive, or lack of accident or mistake. The
    definitive pretrial ruling allowed the State to begin its case-in-chief with evidence
    about the Board’s investigation that led Thoren to surrender his massage license
    followed by testimony from the five former clients. Putting “the effect of this
    evidence . . . in[to] perspective,” Rodriquez, 
    636 N.W.2d at 243
    , this is not a case
    where the improperly admitted evidence had minimal effect or was downplayed
    by the State, cf. 
    id.
     (“The State did not elicit great detail about the prior assaults
    and spent a relatively small amount of time on this line of questioning.”). Rather,
    the improper evidence set the stage for the State’s he said, she said case by
    painting Thoren as a bad actor based on events unrelated to the charged crime,
    bolstered by the Board’s investigation, before even presenting the actual facts of
    43
    the case. The State capitalized on the improper use of the evidence in its closing
    argument, where it urged the jury to “rely on any of the other testimony of the
    other victims . . . to show, was this a mistake, was it an accident, did he intend
    to do this to her. He’s done it to five other women.”
    The district court was tasked with determining the specific legitimate
    issues to which the evidence was relevant and limiting its use to those issues.
    Its failure to do so fell far short of the “model of caution” we have recognized in
    cases involving rule 5.404(b) evidence. See Putman, 848 N.W.2d at 16
    (recognizing district court carefully analyzed each piece of prior bad acts evidence
    before admitting it, winnowed thousands of pornographic videos and images
    down to two, and then only allowed the witness to read the titles of the two videos
    into evidence without allowing the jury to see them); see also Richards, 809
    N.W.2d at 93 n. 4 (applauding district court’s efforts during trial where, before
    admitting evidence of specific prior bad acts, the court required the evidence to
    show the defendant’s “malice” toward the victim “rather than a propensity to
    commit bad acts” and considered the “strength of the witness or evidence on the
    relevant issue”).
    Finally, the strength of the State’s case does not make the errors harmless.
    The evidence against Thoren was not overwhelming where his conviction turned
    on whether the jury believed L.R.’s version of events or Thoren’s. See State v.
    Redmond, 
    803 N.W.2d 112
    , 127 (Iowa 2011) (holding evidence of guilt was not
    overwhelming for purposes of harmless error review where “P.M. testified to one
    version of the events on that evening; Redmond to another”). The district court’s
    44
    errors were not harmless, and Thoren is entitled to a new trial. See Reynolds,
    
    765 N.W.2d at 293
     (holding district court should have limited evidence of prior
    incidents between the defendant and his assault victim, concluding district court
    could have allowed some prior incidents but its error in admitting evidence about
    eleven previous events was not harmless where the state urged the jury in closing
    to find the defendant guilty based on the five years’ worth of history, which
    “foretold what was going to happen September 27, 2006”).
    VI. Disposition.
    We vacate the court of appeals decision, reverse Thoren’s conviction, and
    remand the case for a new trial consistent with this opinion.
    DECISION OF COURT OF APPEALS VACATED; DISTRICT COURT
    JUDGMENT REVERSED AND REMANDED.
    Christensen, C.J., and Appel and McDermott, JJ., join this opinion.
    Waterman, J., files an opinion concurring specially, in which Mansfield, J., joins.
    Mansfield, J., files an opinion concurring specially, in which Waterman and
    McDonald, JJ., join.
    45
    #20–0192, State v. Thoren
    WATERMAN, Justice (concurring specially).
    I join part IV.A of the majority opinion and concur in the result and join
    Justice Mansfield’s special concurrence as to part IV.B. I write separately to raise
    an additional reason that evidence of a practitioner’s voluntary settlement with
    a licensing board should be inadmissible in a subsequent criminal proceeding
    arising from the same or similar misconduct: Iowa’s strong public policy to
    encourage settlements as reflected in Iowa Rule of Evidence 5.408.10 The
    majority opinion understandably refrains from mentioning rule 5.408 because
    Thoren failed to raise that ground in district court or on appeal.
    Iowa Rule 5.408 prohibits use of evidence of settlements to prove the
    validity of a disputed claim, and does so to “promot[e] . . . the public policy
    10Iowa   Rule of Evidence 5.408 provides:
    a. Prohibited uses. Evidence of the following is not admissible—on behalf
    of any party—to prove the validity or amount of a disputed claim:
    (1) Furnishing, promising, or offering—or accepting, promising to accept,
    or offering to accept—a valuable consideration in compromising or attempting to
    compromise the claim that was disputed on either validity or amount.
    (2) Conduct or a statement made during compromise negotiations about
    the claim.
    b. Exceptions. The court may admit this evidence for another purpose,
    such as proving a witness’s bias or prejudice, negating a contention of undue
    delay, or proving an effort to obstruct a criminal investigation or prosecution.
    Notably, Iowa Rule of Evidence 5.408 does not contain the exception added in 2006 to
    Federal Rule of Evidence 408, for “negotiations related to a claim by a public office in the exercise
    of its regulatory, investigative, or enforcement authority” that is “offered in a criminal case.” Fed.
    R. Evid. 408(a)(2). Based on that exception, the United States Court of Appeals for the Sixth
    Circuit on plain error review held that the district court did not abuse its discretion in a criminal
    billing fraud trial by admitting into evidence without objection an order by the Kentucky Board
    of Medical Licensure in which the defendant voluntarily surrendered his medical license to
    resolve charges arising out of the same misconduct. United States v. Paulus, 
    894 F.3d 267
    , 280
    (6th Cir. 2018). United States v. Paulus is inapplicable because the Iowa rule lacks that exception.
    46
    favoring the compromise and settlement of disputes.” Graber v. City of Ankeny,
    
    616 N.W.2d 633
    , 638–39 (Iowa 2000) (en banc) (quoting Fed. R. Evid. 408
    advisory committee’s note to 1972 proposed rules). Such evidence has low
    probative value because the motivation to settle may be “a desire for peace rather
    than . . . any concession of weakness of position.” 
    Id.
     (quoting Fed. R. Evid. 408
    advisory committee’s note to 1972 proposed rules). In Graber v. City of Ankeny,
    we held the district court abused its discretion in admitting evidence of a
    settlement because allowing the evidence “would seriously undermine Iowa’s
    public policy to encourage settlements.” 
    Id. at 641
    . The same reasoning applies
    here.
    Our court today correctly holds that the district court abused its discretion
    in this criminal trial by admitting into evidence Kevin Thoren’s voluntary
    surrender of his massage license and related documents from the Iowa Board of
    Massage Therapy. A contrary holding would deter other licensed professionals
    from voluntary settlements surrendering their license to practice if that
    settlement would be admissible into evidence against them in related criminal
    proceedings. Settlements with licensing boards should be encouraged, not
    discouraged. For this additional reason, I join the court’s opinion requiring a
    retrial of the criminal charge without evidence of Thoren’s settlement with the
    licensing board.
    Mansfield, J., joins this special concurrence.
    47
    #20–0192, State v. Thoren
    MANSFIELD, Justice (concurring specially).
    I join part IV.A of the majority opinion. I concur in the result as to part
    IV.B. Specifically, I agree with the majority that the district court did not abuse
    its discretion in admitting the prior acts involving L.K., J.J., and A.N. but abused
    its discretion in admitting the prior acts involving S.T. and M.L. However, I
    believe the majority’s analysis in IV.B confuses an important evidentiary issue.
    Therefore, I specially concur.
    I. The Majority’s Mistake About Mistake.
    According to the majority, Kevin Thoren’s prior acts of sexual misconduct
    against L.K., J.J., and A.N. are admissible only to prove that L.R. didn’t make a
    mistake in claiming Thoren sexually assaulted her—i.e., to prove that the alleged
    victim’s testimony is correct. But how is this any different from bolstering the
    victim’s credibility, a ground that the majority states is invalid? These are two
    sides of the same coin.
    Analytically, we need to back up and consider how the other incidents
    involving L.K., J.J., and A.N. might be relevant to prove L.R. didn’t err in her
    testimony. They are relevant because they tell us something about Thoren,
    specifically that Thoren when performing therapeutic procedures on female
    clients has repeatedly touched them sexually against their wishes. And why is
    this significant? Because it tells us that Thoren derives gratification from this
    kind of activity and therefore is more likely to have engaged in it with L.R. In
    short, the underlying reason why the other incidents are relevant is to show
    48
    Thoren’s motive and intent.11 “Lack of victim mistake” is just a more circuitous
    way of saying the incidents help prove Thoren’s motive and intent.
    Again, to the extent prior bad acts by Thoren could demonstrate that L.R.
    didn’t make a mistake, they do so by showing that Thoren had a tendency to do
    the same thing to other women in the same position. That is 100% propensity
    evidence, unless you treat it as bearing also on the defendant’s motive and intent.
    Consider the following hypotheticals:
       Mr. X is stopped by a police officer for erratic driving. He
    refuses the Datamaster but is prosecuted for OWI. The officer
    testifies that he smells an alcoholic beverage on the
    defendant’s breath and that the defendant was driving
    erratically, which the defendant denies. Can the state
    introduce evidence of the defendant’s prior OWI’s to prove
    “lack of mistake” by the cop in his testimony?
       An informant who is a heavy drug user testifies that he bought
    drugs from Ms. Y. Can the state introduce evidence of Ms. Y’s
    prior drug convictions to show “lack of mistake” by the
    informant—e.g., to rebut the claim that the informant was a
    heavy drug user and not a reliable witness?
    The answer to these questions is, “Clearly no.” Evidence of the defendant’s prior
    acts is not admissible to prove absence of mistake per se by a complaining
    witness. Those acts are only admissible when the evidence is able to demonstrate
    something about the defendant’s motive, intent, plan, etc. at the time of the
    charged crime.
    11The  majority spends a page belaboring a distinction between motive and intent. I’m not
    sure why. This distinction may matter with respect to other crimes. For example, most drug
    dealers sell drugs to make money, not because they get a thrill out of the act of sale. However,
    with sex offenses, motive and intent tend to be one and the same—sexual gratification.
    49
    Unsurprisingly, the majority is only able to cite three out-of-state cases in
    support of its claim that absence of victim mistake is an independent ground for
    admissibility under rule 5.404(b). See State v. Lough, 
    889 P.2d 487
    , 495 (Wash.
    1995) (en banc); Koo v. State, 
    640 N.E.2d 95
    , 100–02 (Ind. Ct. App. 1994); People
    v. Deeney, 
    193 Cal. Rptr. 608
    , 612–13 (Ct. App. 1983). The Washington Supreme
    Court case actually supports my position. In that court’s view, the incidents with
    the other women showed the victim didn’t make a mistake, but only by showing
    the defendant’s “design.” Lough, 889 P.2d at 494–95. As the court put it,
    The evidence that this Defendant rendered four other women, whom
    he had relationships with, unconscious with drugs and then raped
    them is not admitted to establish that the Defendant has a criminal
    disposition or a bad character; it is admitted to show that he
    committed the charged offense pursuant to the same design he used
    in committing the other four acts of misconduct. The evidence is
    admitted to show plan, not propensity. In this case, the Defendant’s
    history of drugging women, with whom he had a personal
    relationship, in order to rape them while they were unconscious or
    confused and disoriented evidences a larger design to use his special
    expertise with drugs to render them unable to refuse consent to
    sexual intercourse. A rational trier of fact could find that the
    Defendant was the mastermind of an overarching plan.
    Id. The legal analysis in the case from the Indiana Court of Appeals is pretty
    conclusory and, I would suggest, out of date. See Wages v. State, 
    863 N.E.2d 408
    , 412 (Ind. Ct. App. 2007) (noting that “[t]his part of the rule has been
    described as ‘simply a special form of the exception that permits the use of other
    crimes to prove intent’ ”) (quoting Robert L. Miller, Jr., Courtroom Handbook on
    Indiana Evidence 80 (2007)). The California Court of Appeal case involves a very
    different situation where the defendant brought up prior conduct of the victim—
    i.e., her alleged accidental falls resulting in injury. Deeney, 193 Cal. Rptr. at
    50
    613–14. The court concluded that in some instances the state could respond
    with prior misconduct by the defendant against the same victim to show the
    prior injuries were not accidental. Id. That scenario has nothing to do with the
    present case or with the concept of “victim mistake.”
    The predominant view is that rule 5.404(b) refers to an absence of mistake
    by the defendant. This is what the treatises say. See 22B Charles Alan Wright &
    Kenneth W. Graham, Jr., Federal Practice and Procedure § 5255, at 336 (2017)
    (“The final listed uses for uncharged misconduct evidence in Federal Rule of
    Evidence 404(b)(2)—‘absence of mistake, or lack of accident’—provide judges and
    lawyers with a more specialized application of the broader category of ‘intent.’ ”);
    David P. Leonard, The New Wigmore: Evidence of Other Misconduct and Similar
    Events § 7.2.2, at 474 (Richard D. Friedman ed., 2d ed. 2019) (“Most codified
    versions of the uncharged misconduct rule, including Federal Rule of Evidence
    404(b), list ‘intent’ and ‘absence of mistake or accident’ separately. It is
    unnecessary to do so. ‘Absence of mistake or accident’ is generally synonymous
    with intent.”). As Professor Doré puts it in her respected treatise on Iowa
    evidence: “Evidence proving lack of mistake or accident appears to significantly
    overlap proof of intent. Proof of other acts demonstrating that the defendant did
    not act under a mistake or accident on this occasion in essence proves
    intentional conduct.” 7 Laurie Kratky Doré, Iowa Practice: Evidence § 5.404:6, at
    284 (2018–2019 ed. 2018).
    Thus, I believe lack of victim mistake is an unnecessary legal distraction,
    without support in logic or precedent.
    51
    II. Similarity and Nearness in Time Are Two Keys to Admissibility.
    While I do not think absence of victim mistake is a basis for admissibility
    under rule 5.404(b), I would nonetheless conclude that the district court did not
    abuse its discretion in admitting the testimony of L.K., J.J., and A.N. Thoren
    vigorously disputed that he had touched L.R. sexually, and proof that he had
    done something similar to other women clients in the not-too-distant past for his
    own sexual gratification could tend to show the he intended to do so to L.R. on
    November 21, 2018, and therefore in fact did so.
    Thoren’s defense was that he did not touch L.R. in any private area, and
    that his purpose was never to give L.R. “sexual energy” but merely to give her
    “energy.” For example, Thoren testified,
    I asked her a couple questions. Again, typical, when somebody is
    having a session, but just, how are you doing, what are you
    experiencing, what are you feeling, and she didn’t answer. And so
    then I asked again. And she didn’t answer. So I just dropped it,
    because I thought, well, she’s just in a really relaxed state, doesn’t
    want to answer. And then she made a noise, kind of a groan, and
    said that was the deepest orgasm I’ve ever had. There was nothing -
    - anyway.
    Q. So [L.R.] said that to you?
    A. Yes.
    Q. Was there anything that you said inappropriate that went
    before that?
    A. No, sir.
    Q. And what was your response to [L.R.] saying that?
    A. I immediately pulled my hands away, and I said that was
    not the purpose or intent, I believe is what the word I used. I may
    have reacted a little too strongly in that way.
    52
    Evidence that Thoren had improperly touched other female clients during their
    sessions could, in the right situation, tend to show that the truth was otherwise.
    In other words, evidence that Thoren intentionally committed nonconsensual
    sexual touching on one or more clients could, under some circumstances, tend
    to prove he intended to commit—and therefore did commit—a sexual assault
    against L.R.
    Of course, using evidence of past misconduct to help prove the defendant
    committed the charged crime is fraught with danger. If the prior misconduct
    provides only weak evidence of the defendant’s motive and intent, there is a grave
    risk that its legitimate use will be outweighed by its improper effects. Most trial
    judges recognize this point intuitively. They therefore base rule 5.404(b)
    admissibility decisions largely on how similar and how close in time the prior
    acts are to the charged criminal offense. The more similar and the closer in time,
    the greater the likelihood the evidence will be allowed to show some legitimate
    rule 5.404(b) purpose.
    We recognized this point in State v. Putman, a case where identity was at
    issue and where we found that evidence of the defendant’s possession of two
    pornography videos of very young children being raped was admissible to prove
    that the defendant had raped a very young child. 
    848 N.W.2d 1
    , 12–13 (Iowa
    2014). We emphasized, “There is undeniable similarity between the two videos
    and the act for which Putman was on trial.” Id. at 12.
    The most analogous case factually to the present case is State v. Allen. 
    565 N.W.2d 333
     (Iowa 1997). In a prosecution of a hypnotherapist for having sexual
    53
    relations with a client in violation of Iowa Code section 709.15(2) (1993), we
    upheld the admission of an incident involving another woman. 
    Id. at 339
    .
    Although the majority tries to distinguish Allen, what we said in that case speaks
    for itself:
    We believe the testimony of Westphal tended to show a pattern or
    scheme of conduct in connection with Allen’s behavior. Both
    Westphal and Frederick found Allen’s listing in the yellow pages of
    the telephone directory and sought help from him for their
    problems—Westphal for weight loss and Frederick for unexplained
    physical symptoms. Allen initiated sexual contact with both women
    while they were in his office for treatment. The similarities between
    the two situations were relevant to establishing such factors as
    motive, intent, opportunity, and plan. See Iowa R. Evid. 404(b).
    
    Id.
    Other courts follow a similar analytical approach focusing on the similarity
    of the prior conduct on the ground that more similar conduct is more probative
    of motive, intent, or plan. See, e.g., People v. Gonzales, 
    377 N.E.2d 91
    , 100 (Ill.
    App. Ct. 1978) (“The attacks on the other women and the rape of the complainant
    bear significant similarities which rendered evidence of the former relevant as
    proof of the existence of a common scheme or design, and modus operandi.”);
    Young v. State, 
    106 So. 3d 775
    , 780 (Miss. 2012) (en banc) (“[T]he trial court here
    did not abuse its discretion by admitting evidence of Young’s previous sexual
    abuse of another prepubescent female family member, because the evidence was
    admissible for noncharacter purposes. Those purposes include establishing that
    Young’s motive was a ‘seemingly uncontrollable desire to partake in pedophilic
    sexual activities with young and developing female juveniles’ and that both
    assaults were part of a ‘common plan, scheme, or system’ that involved Young
    54
    taking advantage of family relationships to engage in sexual activities with
    prepubescent girls.”); State v. Bommarito, 
    856 S.W.2d 680
    , 682–83 (Mo. Ct. App.
    1993) (finding that evidence that the defendant “had grabbed, fondled and
    forcibly kissed other women that evening . . . . was relevant to establish the
    motive and intent of Defendant on the evening the crime occurred”);
    Commonwealth v. Gordon, 
    673 A.2d 866
    , 869–70 (Pa. 1996) (finding that
    evidence that an attorney sexually assaulted three other women when they were
    meeting with him on legal business in similar circumstances was “relevant to
    prove motive, intent, absence of mistake or accident, and a common scheme or
    plan embracing the commission of two crimes so related to each other that proof
    of one tends to prove the others”); State v. Perry, 
    182 A.3d 558
    , 569 (R.I. 2018)
    (“ ‘[T]he factors to be considered when comparing the charged incident and the
    prior sexual misconduct are “time, place, age, family relationships of the victims,
    and the form of the sexual acts.” ’ Looking to these factors, we conclude that the
    trial justice did not abuse her discretion in finding that the prior acts of sexual
    misconduct were similar to the charged acts.” (alteration in original) (citation
    omitted) (quoting State v. Mohapatra, 
    880 A.2d 802
    , 807 (R.I. 2005))).
    We need to apply that screen here, as well as the “clear proof” and “need
    for the evidence” rule 5.403 screens that serve a similar purpose. I agree with
    the majority that the trial’s focus on Reiki treatment and phantom touches
    accentuated the need for testimony from the other women. However, that
    consideration goes into the rule 5.403 balancing under need for the evidence.
    55
    See, e.g., Putman, 848 N.W.2d at 9. It does not, as I’ve already noted, provide an
    independent ground to admit the testimony under absence of victim mistake.
    Considering the similarity of the other incidents, the timeframe in which
    they occurred, the strength of the proof of those incidents, the need for the
    evidence, and the other rule 5.403 factors, I would find that the district court
    did not abuse its discretion in admitting evidence of testimony from L.K., J.J.,
    and A.N. This is a close call for me because two of these incidents had occurred
    nearly a decade before, and I am not saying that a narrower view of admissibility
    would have been improper. I agree with the majority that the incidents involving
    S.T. and M.L. were not sufficiently similar to the charged crime to be admissible.
    Waterman and McDonald, JJ., join this special concurrence.