Dusel v. Factory Mutual Insurance Company ( 2022 )


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  •            United States Court of Appeals
    For the First Circuit
    No. 21-1609
    THOMAS DUSEL,
    Plaintiff, Appellant,
    v.
    FACTORY MUTUAL INSURANCE COMPANY, d/b/a FM GLOBAL,
    Defendant, Appellee.
    APPEAL FROM THE UNITED STATES DISTRICT COURT
    FOR THE DISTRICT OF MASSACHUSETTS
    [Hon. Nathaniel M. Gorton, U.S. District Judge]
    Before
    Barron, Chief Judge,
    Gelpí, Circuit Judge,
    and Katzmann,* Judge.
    Danielle Callahan Gill, with whom Callahan Law Group, LLC was
    on brief, for appellant.
    Matthew A. Porter, with whom Todd H. Girshon, Jonathan C.
    Hatfield, and Jackson Lewis P.C. were on brief, for appellee.
    November 1, 2022
    * Of the United States Court of International Trade, sitting
    by designation.
    GELPÍ, Circuit Judge.          Appellant Thomas Dusel ("Dusel")
    was an employee of Appellee Factory Mutual Insurance Company, d/b/a
    FM Global ("FM Global") until his termination on September 12,
    2018.    Dusel, alleging that the stated grounds for his firing were
    pretextual, brought suit against FM Global in Massachusetts state
    court    alleging        age    discrimination         and    retaliation      against     a
    protected activity.            The action was removed to the United States
    District Court for the District of Massachusetts, which granted FM
    Global's motion for summary judgment on both claims.                        We affirm.
    I. Background
    Dusel, a citizen of Massachusetts, was an employee of FM
    Global,      a    commercial        property    insurer       headquartered      in    Rhode
    Island, for approximately thirty-five years.                         At the time of his
    termination,          Dusel    was    President     and      Chief   Executive    Officer
    ("CEO")          of   Hobbs     Brook       Management         ("HBM"),    a      Waltham,
    Massachusetts-based subsidiary of FM Global which provides real
    estate    management          and    services    for    its    properties.        Several
    employees reported to Dusel in his capacity as President and CEO
    of HBM, including Kevin Casey ("Casey"), HBM's Vice President of
    Leasing and Construction.
    In 2015, Patricia Holland ("Holland"), an HBM employee,
    filed    a       complaint     with    FM    Global's        Human    Resources       ("HR")
    department alleging harassment and other inappropriate behavior by
    Casey, then her supervisor.                 HR conducted an investigation but
    - 2 -
    declined     to   discipline   Casey.        Dusel     later    testified        at   a
    deposition that he did not consider himself a witness to the
    specific     alleged   behavior     that   was   the    subject       of   the      2015
    investigation, but that he nonetheless disagreed with the outcome
    of the inquiry and had expressed as much to HR.                In February 2018,
    Holland filed another complaint against Casey alleging workplace
    misconduct, whereupon a second             internal     investigation        ensued.
    Dusel claims that Holland initially came to him with her concerns,
    which   he   passed    along   to   his    supervisors,        and    that     he   had
    encouraged her to reach out to HR.                   Pursuant to the second
    investigation, Dusel reported to HR over the course of three
    interviews that he had observed Casey acting aggressively toward
    different     men   and   women,    including    Holland,       and     that     other
    employees     had     previously    expressed     concerns           regarding       the
    workplace environment created by Casey.               HR again concluded that
    it lacked sufficient evidence to determine that Casey had violated
    FM Global's policies.
    Following the second HR investigation, FM Global decided
    in March 2018 to relocate HBM's management team to FM Global's
    corporate headquarters in Johnston, Rhode Island, and to rearrange
    HBM's organizational structure such that Casey and Holland would
    report directly to Alex Tadmoury, Dusel's supervisor at FM Global.
    Dusel was displeased by this decision, and in April and June 2018
    sent letters through an attorney to FM Global protesting that the
    - 3 -
    move would substantially increase his commute time and diminish
    his job responsibilities.             Dusel suggested that FM Global's stated
    reasons for the operational changes were pretextual, and that FM
    Global was in fact retaliating against him in connection with his
    role    in    the     2018   HR    investigation      into      Casey.     Dusel   also
    complained, in his June 2018 letter, that his May 9 performance
    review       --    wherein   he     received     an   overall     rating   of   "Meets
    Expectations"          --    similarly      evinced        FM   Global's    continued
    retaliatory animus.               FM Global disputed that the changes were
    punitive in nature, claiming that they were intended to increase
    cohesion among the HBM leadership team, enable better supervision
    by FM Global, and defuse interpersonal tensions that were revealed
    by the HR investigation.
    In July 2018, FM Global began an audit of the cell phone
    account for HBM after an HBM employee sought to retain his cell
    phone following his departure from the company.                            During the
    investigation, FM Global discovered that Dusel possessed three
    cell phone lines, two of which belonged to his wife and daughter,
    which had been charged to the company's account for several years.
    Dusel    never       reimbursed      HBM   for     these    expenses.      While    the
    investigation into HBM's cell phone expenses was ongoing, Dusel
    transferred his wife and daughter's cell phone lines from the
    company plan to a personal account.                    Shortly thereafter, Dusel
    told company investigators that none of his family members had
    - 4 -
    phone lines charged to HBM's company account, without informing
    them that the phone lines had been charged to HBM until the
    previous month.        In August 2018, FM Global produced a report
    concluding that Dusel had been untruthful in several respects with
    regard to the cell phone investigation.                   Dusel disputes having
    deceived the investigators, claiming that he had been confused
    about the phone lines and arguing that his statement as to none of
    his family members having any service plans charged to HBM was
    technically truthful at the time he made the claim.
    Concurrently      with   the    cell     phone   investigation,    FM
    Global opened an inquiry into Dusel's frequent visits to an HBM-
    owned     building   in    Wakefield,      Massachusetts         (the   "Wakefield
    facility") outside of normal business hours.               Surveillance footage
    revealed Dusel entering the Wakefield facility's cafeteria on
    several    occasions      carrying   an    empty    bag    and   leaving   shortly
    thereafter with a full bag.          FM Global found evidence that Dusel
    had visited the facility at least                  eighty-seven times in the
    previous two years, frequently after work hours or on weekends.
    In a report, FM Global concluded that Dusel had likely been
    stealing food from the Wakefield facility for several years.
    Dusel, for his part, denies taking food from company property
    without compensating HBM.
    In September 2018, FM Global terminated Dusel on the
    stated grounds of violations of the company's code of conduct and
    - 5 -
    misappropriation of company services and property.                 Following
    Dusel's termination, FM Global found that Dusel had amassed a
    considerable   physical   and    electronic     collection    of   sexually
    explicit materials in his office, all in violation of FM Global
    policy.   Dusel   admitted      in   a   deposition   to   accessing   adult
    materials using company servers.         Prior to the events in question,
    Dusel had never been formally disciplined by FM Global.
    On July 17, 2019, Dusel brought suit against FM Global
    in Massachusetts state court, alleging age discrimination and
    retaliation under Mass. Gen. Laws ch. 151B, § 4(1B) and § 4(4).1
    FM Global removed the action to federal court on the basis of
    diversity jurisdiction, and filed an Answer with Counterclaims
    against Dusel for misappropriation, waste of corporate assets,
    conversion, unjust enrichment, and breach of fiduciary duty.              On
    1 In relevant part, Mass. Gen. Laws ch. 151B, § 4(1B) makes
    it unlawful
    [f]or an employer in the private sector . . . because of
    the age of any individual, to refuse to hire or employ
    or to bar or to discharge from employment such
    individual, or to discriminate against such individual
    in compensation or in terms, conditions or privileges of
    employment, unless based upon a bona fide occupational
    qualification.
    Mass. Gen. Laws ch. 151B, § 4(4) provides that it is illegal
    for an employer "to discharge, expel or otherwise discriminate
    against any person because he has opposed any practices forbidden
    under this chapter or because he has filed a complaint, testified
    or assisted in any proceeding under section five [of Mass. Gen.
    Laws ch. 151B]."
    - 6 -
    April 21, 2021, the parties cross-moved for summary judgment.
    Later, Dusel filed a motion to exclude evidence relating to the
    pornographic    materials   as   well   as   motions   to    strike    certain
    affidavits FM Global had filed in support of its motion for summary
    judgment and certain paragraphs from its Statement of Undisputed
    Material Facts.      On July 14, 2021, the district court denied
    Dusel's motions and granted summary judgment in favor of FM Global,
    dismissing Dusel's complaint in its entirety.               Dusel v. Factory
    Mut. Ins. Co., No. 19-11698, 
    2021 WL 2953322
    , at *10 (D. Mass July
    14, 2021).      Subsequently, FM Global dismissed its counterclaims
    without prejudice.     Dusel timely appealed.
    II. Discussion
    On appeal, Dusel contends that the district court erred
    in   granting    summary    judgment    on   the   retaliation        and   age
    discrimination claims and in denying Dusel's evidentiary motions.
    We assess Dusel's arguments regarding the age discrimination and
    retaliation claims and the evidentiary motions seriatim.
    A. The District Court Did Not Err in Granting Summary Judgment to
    FM Global on Dusel's Age Discrimination and Retaliation Claims
    1. Standard of Review
    We review a district court's grant or denial of summary
    judgment de novo, examining the record in the light most favorable
    to the nonmovant and drawing all reasonable inferences in that
    party's favor.     Murray v. Kindred Nursing Ctrs. W. LLC, 789 F.3d
    - 7 -
    20, 25 (1st Cir. 2015).     "To prevail, the movant must demonstrate
    that 'there is no genuine dispute as to any material fact' and
    that it 'is entitled to judgment as a matter of law.'" 
    Id.
     (quoting
    Fed. R. Civ. P. 56(a)).       This standard is unchanged when the
    district court disposes of cross-motions for summary judgment
    simultaneously.   See Blackie v. Maine, 
    75 F.3d 716
    , 721 (1st Cir.
    1996).   Facts are material if they "might affect the outcome of
    the suit under the governing law."       Anderson v. Liberty Lobby,
    Inc., 
    477 U.S. 242
    , 248 (1986).     If the party moving for summary
    judgment is able to make a showing that there is no genuine issue
    of material fact, "the burden shifts to the nonmoving party, who
    must, with respect to each issue on which [it] would bear the
    burden of proof at trial, demonstrate that a trier of fact could
    reasonably resolve that issue in [its] favor."      Flovac, Inc. v.
    Airvac, Inc., 
    817 F.3d 849
    , 853 (1st Cir. 2016) (alterations in
    original) (quoting Borges ex rel. S.M.B.W. v. Serrano–Isern, 
    605 F.3d 1
    , 5 (1st Cir. 2010)).       Evidence of a genuine dispute of
    material fact "must be 'significantly probative'" and "more than
    'merely colorable.'"   
    Id.
     (quoting Anderson, 477 U.S at 249-50).
    2. The Age-Discrimination Claim
    Massachusetts's     antidiscrimination   statute   forbids
    employers from discriminating against or terminating employees
    based on their age.    Mass. Gen. Laws ch. 151B, § 4(1B).      Under
    Massachusetts law, there are "four elements an employee must prove
    - 8 -
    to prevail on a claim of discrimination in employment: membership
    in a protected class, harm, discriminatory animus, and causation."
    Sullivan v. Liberty Mut. Ins. Co., 
    825 N.E.2d 522
    , 530 (Mass.
    2005).      If    direct    evidence    of     the   latter    two    factors   is
    unavailable,      Massachusetts    courts        apply   the       burden-shifting
    framework articulated in McDonnell Douglas Corp. v. Green, 
    411 U.S. 792
    , 802–05 (1973), by which a plaintiff may establish animus
    or causation.       Sullivan, 825 N.E.2d at 530 & n.11 (noting that it
    is the Massachusetts Supreme Judicial Court's "practice to apply
    Federal    case     law    construing    the     Federal    antidiscrimination
    statutes in interpreting [Mass. Gen. Laws ch.] 151B" (quoting
    Wheatley v. Am. Tel. & Tel. Co., 
    636 N.E.2d 265
    , 268 (Mass.
    1994))).    Under this tripartite framework, a plaintiff bears the
    initial    burden    of    establishing      a   prima     facie    case   of   age
    discrimination by demonstrating that he or she "(1) was a member
    of the class protected by [Mass. Gen. Laws ch.] 151B (that is,
    over forty years of age); (2) had performed [his or] her job at an
    acceptable level; (3) was terminated; and (4) was replaced by a
    similarly or less qualified" person at least five years younger.
    Knight v. Avon Prods., Inc., 
    780 N.E.2d 1255
    , 1262, 1265 (Mass.
    2003) (footnote omitted).2        If the plaintiff is able to establish
    2 Knight further clarifies that "the elements of the prima
    facie case will vary depending on, among other things, the type of
    discrimination alleged and the protected category at issue" and
    - 9 -
    a prima facie case, the burden of production -- though not, at
    summary judgment, the burden of persuasion -- "shifts to the
    employer to 'articulat[e] a legitimate, nondiscriminatory reason
    for its hiring decision,'" whereupon "the burden of production
    shifts   back   to   the   employee   to   produce   evidence   that   'the
    employer's articulated justification [for the adverse action] is
    not true but a pretext.'" Verdrager v. Mintz, Levin, Cohn, Ferris,
    states that to satisfy the fourth element of the prima facie case
    in an age-discrimination suit, a plaintiff must either show
    replacement by a "substantially younger" individual "or otherwise
    present some evidence that supports a reasonable inference that
    age was a determinative factor in the employer's decision." 780
    N.E.2d at 1258, 1261 n.4. How courts lay out the final prong of
    the prima facie case can differ slightly depending on the case.
    See, e.g., Bennett v. Saint-Gobain Corp., 
    507 F.3d 23
    , 30 (1st
    Cir. 2007) (fourth prong, in an age-discrimination case brought
    under both federal law and Mass. Gen. Laws ch. 151B, § 4(1B), was
    satisfied if the "employer had a continuing need for the services
    that he had been rendering"); Sullivan, 825 N.E.2d at 531, 533-34
    (fourth prong requires that "employer sought to fill [the
    employee's]   position    by  hiring    another   individual   with
    qualifications similar to [the employee's]," and, at least in a
    reduction-of-force case, this is met if the plaintiff can proffer
    "some evidence that [the plaintiff's] layoff occurred in
    circumstances that would raise a reasonable inference of unlawful
    discrimination"); see also Abramian v. Pres. & Fellows of Harvard
    Coll., 
    731 N.E.2d 1075
    , 1084 (Mass. 2000) (noting that the specific
    elements of the prima facie showing "may vary depending on the
    specific facts of a case" (quoting Blare v. Husky Injection Molding
    Sys. Bos., Inc., 
    646 N.E.2d 111
    , 115 (Mass. 1995))). Here, it is
    only the second prong of the prima facie case -- acceptable job
    performance -- that the district court found lacking.        In its
    briefing to us, FM Global similarly contends that Dusel failed to
    establish adequate performance, but does not dispute that Dusel
    met the other elements of the prima facie case.        As such, we
    assume, for purposes of summary judgment, that it is only the
    acceptable-performance prong that is in dispute.
    - 10 -
    Glovsky & Popeo, P.C., 
    50 N.E.3d 778
    , 793 (Mass. 2016) (alterations
    in original) (quoting Blare, 646 N.E.2d at 115-16).
    We begin with the prima facie case. "Whether a plaintiff
    has proffered evidence sufficient to establish a prima facie case
    is a question of law and depends on the specific facts of a case."
    Knight, 780 N.E.2d at 1263.        The Supreme Court has made clear that
    the   first    stage   of   the   McDonnell   Douglas   framework   is    "not
    onerous."     Tex. Dep't of Cmty. Affs. v. Burdine, 
    450 U.S. 248
    , 253
    (1981).     Indeed, "[w]e have described this prima facie showing as
    'modest,' and a 'low standard.'"          Vélez v. Thermo King de P.R.,
    
    585 F.3d 441
    , 447 (1st Cir. 2009) (first quoting Rathbun v.
    Autozone, Inc., 
    361 F.3d 62
    , 71 (1st Cir. 2004); and then quoting
    Zapata–Matos v. Reckitt & Colman, Inc., 
    277 F.3d 40
    , 44 (1st Cir.
    2002)); accord Villanueva v. Wellesley Coll., 
    930 F.2d 124
    , 127
    (1st Cir. 1991) (prima facie showing of employment discrimination
    is "quite easy to meet").
    Notwithstanding     this   relatively     lax   standard,   the
    district court determined that Dusel had failed to meet his burden
    at the prima facie stage because he was unable to demonstrate that
    he performed his job at an acceptable level.                  Dusel, 
    2021 WL 2953322
    , at *6.        In so holding, the court emphasized that Dusel
    had failed to counter the evidence mustered by FM Global showing
    "1) that he had improperly charged the company for personal phone
    lines and other expenses, 2) that he had problems managing his
    - 11 -
    staff and 3) [that] security camera footage [depicted] Dusel
    entering company-owned property outside of business hours and for
    no legitimate business purpose." 
    Id.
     Further, while Dusel offered
    his track record of positive performance reviews and substantial
    compensation as evidence that he was performing his job at an
    acceptable level, the court determined that previous "[y]ears of
    positive performance do not . . . create a genuine dispute as to
    an employee's performance at the time of his termination," and
    that his compensation was likewise not probative of his "day-to-
    day performance of his job."              
    Id.
         As such, the district court
    concluded, "[t]he evidence indicates that there is no genuine
    dispute as to whether plaintiff can establish a prima facie case
    of age discrimination."          
    Id.
    On review, we find that the district court erred in
    determining that Dusel failed to make out a prima facie case of
    age discrimination.           "A plaintiff is not required, at the prima
    facie     stage,         to    disprove         the        defendant's     proffered
    nondiscriminatory reason for taking an adverse employment action."
    Acevedo-Parrilla v. Novartis Ex-Lax, Inc., 
    696 F.3d 128
    , 139 (1st
    Cir.    2012)    (district      court    erred        in   considering     employer's
    "alleged reason for dismissal" at the first stage of the McDonnell
    Douglas analysis).        Such evidence properly comes into play only at
    the second and third stages of the McDonnell Douglas framework,
    where   the     burden    shifts   to   the     employer      to   offer   a   legally
    - 12 -
    sufficient rationale for the adverse employment action, and (if
    such an explanation is provided) the burden returns to the employee
    to demonstrate that such rationale was pretextual.              See 
    id.
        As
    such, by requiring Dusel to respond to FM Global's stated reasons
    for his termination at the outset (to wit, Dusel's improper cell
    phone charges, staff management issues, and suspicious after-hours
    visits to company property), the district court placed too much
    heft onto a burden that, at the prima facie stage, is intended to
    be light.    "This error," we have noted, "was captured well" by the
    Sixth Circuit's explanation that
    [a] court may not consider the employer's alleged
    nondiscriminatory   reason   for  taking   an   adverse
    employment action when analyzing the prima facie case.
    To do so would bypass the burden-shifting analysis and
    deprive the plaintiff of the opportunity to show that
    the nondiscriminatory reason was in actuality a pretext
    designed to mask discrimination.
    Vélez, 
    585 F.3d at 448
     (quoting Wexler v. White's Fine Furniture,
    Inc., 
    317 F.3d 564
    , 574 (6th Cir. 2003) (en banc)); see also
    Meléndez v. Autogermana, Inc., 
    622 F.3d 46
    , 51 (1st Cir. 2010)
    (similar).
    In seeking to establish acceptable performance at his
    job -- here, the only disputed element of the prima facie case --
    Dusel points to his thirty-five-year employment history at FM
    Global, including many years of positive performance reviews,
    elevation    to   HBM   President    and     CEO,   and   significant   bonus
    compensation.     Despite the district court's skepticism, under our
    - 13 -
    precedents, this evidence more than suffices to meet Dusel's burden
    of showing acceptable performance.         See, e.g., Vélez, 
    585 F.3d at 448
     (plaintiff's "long record of employment," including previous
    promotions and a "twenty-four year period without discipline or
    indications of deficient performance," established acceptable-
    performance prong of prima facie case); Acevedo-Parrilla, 696 F.3d
    at 139 (burden of showing adequate job performance was met where
    plaintiff had "prior, well-rated experience" in the industry and
    "a long history of employment at the company, spanning an eleven-
    year period, with overall positive reviews"); Freeman v. Package
    Mach. Co., 
    865 F.2d 1331
    , 1334-35 (1st Cir. 1988) ("job-performance
    integer of the prima facie case" satisfied where plaintiff "adduced
    credible evidence that his work was adequate to meet [employer's]
    legitimate expectations," such as a lengthy employment history and
    a "string of promotions and bonuses").           Accordingly, because we
    cannot   take   into   account   FM   Global's   asserted   rationale   for
    terminating Dusel in assessing whether he made a prima facie
    showing of age discrimination, and because Dusel "tendered some
    evidence which, if believed, proved that he was doing his chores
    proficiently," Freeman, 
    865 F.2d at 1335
    , we hold that Dusel has
    carried his modest burden at the first stage of the McDonnell
    Douglas framework.
    Nevertheless, although we disagree with the district
    court's determination that Dusel failed to make a viable prima
    - 14 -
    facie case of age discrimination, we agree with its determination
    that Dusel's claim runs aground at the subsequent step of the
    McDonnell Douglas scheme.         The district court held that summary
    judgment would still have been appropriate even if Dusel had made
    a   viable    prima    facie    case,     because    FM     Global   articulated
    legitimate, nondiscriminatory reasons for his termination, and
    Dusel had failed to adduce evidence that this stated rationale was
    pretextual.     Dusel, 
    2021 WL 2953322
    , at *6-7.              On appeal, Dusel
    contends that the district court erred in these conclusions,
    disputing    that     he   committed    misconduct    and    arguing   that   the
    district court impermissibly discounted evidence pointing to a
    genuine dispute of material fact as to whether FM Global's stated
    reasons for his termination were pretextual.
    At the second stage of the McDonnell Douglas approach,
    the burden of production shifts to the employer to spell out a
    legitimate, nondiscriminatory reason for the adverse employment
    action.   If the "employer's proffered reason is facially adequate
    to constitute a legitimate, nondiscriminatory justification for
    the employer's actions," then the "presumption arising from a
    discrimination plaintiff's prima facie case vanishes," and the
    burden returns to the employee to demonstrate that the employer's
    asserted reasons were pretextual.           Mesnick v. Gen. Elec. Co., 
    950 F.2d 816
    , 824-25 (1st Cir. 1991).           Here, FM Global has introduced
    evidence to the effect that such nondiscriminatory reasons served
    - 15 -
    as the basis for Dusel's termination -- specifically, an affidavit
    from the company's Chief Financial Officer Kevin Ingram (supported
    by the company's investigative documents) stating that FM Global
    terminated Dusel because he had violated company policy by charging
    multiple personal phone lines for several years to FM Global,
    attempted to conceal this behavior and lied to investigators about
    the issue, and made scores of after-hours trips to the Wakefield
    Facility,      from   which    he   appeared    to    be   taking    significant
    quantities of food according to video footage.                Accordingly, FM
    Global   has    satisfied     its   burden     of    articulating    legitimate,
    nondiscriminatory reasons for Dusel's termination.3
    At the final stage of the McDonnell Douglas scheme, the
    burden returns to Dusel to demonstrate that FM Global's asserted
    reasons for his termination were pretextual.                 In attempting to
    argue that FM Global's reasons for his termination were indeed
    pretextual, Dusel does not rely on direct evidence of FM Global's
    age-based      animus,   but     primarily      alleges    instead     disparate
    3 While Dusel disputes certain of FM Global's allegations of
    misbehavior, at the second stage of the McDonnell Douglas framework
    the employer must satisfy "only a burden of production, not a
    burden of persuasion." Mesnick, 
    950 F.2d at 823
    ; accord Sullivan,
    825 N.E.2d at 537-38.    Indeed, it need not prove that "it was
    actually motivated by the proffered reasons," but only that there
    exists at least "a genuine issue of fact as to whether it
    discriminated against the plaintiff." Burdine, 
    450 U.S. at 254
    .
    Thus, by claiming that FM Global's "nondiscriminatory reasons for
    his termination are very much in dispute," Dusel effectively
    concedes that FM Global met its burden at the second step of the
    McDonnell Douglas scheme.
    - 16 -
    treatment vis-à-vis Kevin Casey.          The gravamen of Dusel's argument
    is essentially that Casey, like Dusel, had multiple cell phone
    lines charged to the company, but was not terminated.                That Dusel
    was fired while Casey was retained, Dusel suggests, gives rise to
    an inference that FM Global's asserted rationale was pretextual.
    This argument fails.       For one thing, as the district
    court noted, Casey was not implicated in the same misconduct that
    forms the basis of FM Global's articulated rationale for Dusel's
    termination.4         See Dusel, 
    2021 WL 2953322
    , at *6 (noting that,
    unlike Casey, FM Global accused Dusel of apparent food theft and
    attempting to deceive company investigators regarding the misuse
    of phone lines).           For another, to allow an inference of pretext
    from       evidence   of   disparate   treatment,   Dusel   must    identify   a
    "similarly       situated"     comparator.      Matthews    v.     Ocean   Spray
    Cranberries, Inc., 
    686 N.E.2d 1303
    , 1310 (Mass. 1997) ("The most
    probative means of establishing that the plaintiff's termination
    Dusel also argues that Casey separately ran afoul of an
    4
    anti-nepotism policy and improperly mischarged the firm for
    certain wedding expenditures.     Whatever the veracity of these
    various allegations, they do not alter the conclusion that Dusel's
    alleged misconduct differed from that of Casey. For its part, FM
    Global contends that the firm's anti-nepotism policy was only put
    in place after Casey had hired the relatives in question, and
    argues that the record neither evidences that Casey mischarged FM
    Global for any wedding expenses nor indicates that Casey's phone
    lines were active or put to personal use, as is undisputedly the
    case for Dusel.
    - 17 -
    was a pretext . . . is to demonstrate that similarly situated []
    employees were treated differently.").           That is, someone who is
    substantially similar to those of the complainant "in
    all relevant aspects" concerning the adverse employment
    decision. "The test is whether a prudent person, looking
    objectively at the incidents, would think them roughly
    equivalent    and     the     protagonists     similarly
    situated. . . . In other words, apples should be
    compared to apples."
    Trs. of Health & Hosps. of Bos., Inc. v. MCAD, 
    871 N.E.2d 444
    , 450
    (Mass.   2007)     (citation    omitted)     (quoting   Dartmouth   Rev.   v.
    Dartmouth Coll., 
    889 F.2d 13
    , 19 (1st Cir. 1989), overruled on
    other    grounds    by   Educadores      Puertorriqueños     en   Acción   v.
    Hernández, 
    367 F.3d 61
     (1st Cir. 2004)).            We are skeptical that
    Casey -- who, as Dusel's subordinate had a different title, fewer
    responsibilities, and lower compensation -- is similarly situated
    "in all relevant respects" to Dusel, and Dusel makes no effort in
    his briefing to contend otherwise.            As such, we reject Dusel's
    argument   that,    on   this   basis,   a   reasonable    factfinder   could
    conclude that FM Global's stated reasons for terminating Dusel
    were pretextual.
    Dusel also further charges that the district court erred
    in failing to identify factually disputed issues regarding his
    termination that could give rise to an inference of pretext,
    impermissibly weighing evidence that properly belonged before a
    jury.    His argument in this regard appears to be that, if a
    factfinder were to resolve certain factual disputes in his favor
    - 18 -
    -- in particular, disputes about whether he actually misused
    company phone accounts, intended to mislead investigators, or
    stole food from the Wakefield Facility -- such findings would lead
    the factfinder to "have serious doubt as to the veracity of [FM
    Global's] allegations of theft," which could give rise to an
    inference of pretext.
    But, evidence that would provide a supportable basis for
    reaching a different conclusion than the employer did with respect
    to its stated basis for the employment action does not suffice for
    a plaintiff to defeat summary judgment on the ground that the
    employer's stated basis was pretextual. See Bulwer v. Mount Auburn
    Hosp., 
    46 N.E.3d 24
    , 33 (Mass. 2016) (explaining that, to survive
    summary judgment, the plaintiff must present "evidence from which
    a reasonable jury could infer that the [employer]'s facially proper
    reasons given for its action . . . were not the real reasons" that
    the   employer   took    that   action)   (internal    quotation     omitted);
    accord Forsythe v. Wayfair, Inc., 
    27 F.4th 67
    , 80 (1st Cir. 2022)
    ("[I]t is not enough . . . 'to impugn the veracity of' [the
    employer]'s stated reason for [the employment action]." (quoting
    Ponte   v.   Steelcase   Inc.,    
    741 F.3d 310
    ,   323   (1st   Cir.   2014)
    (internal quotation omitted))).         Rather, when a plaintiff seeks to
    show pretext by debunking the stated reason for the adverse
    employment    action,    they    must   present   evidence    from    which   a
    reasonable jury could supportably conclude "that the employer's
    - 19 -
    explanation is not just wrong, but that it is so implausible that
    the employer more likely than not does not believe it."    Wayfair,
    27 F.4th at 80 (citing Collazo-Rosado v. Univ. of P.R., 
    765 F.3d 86
    , 93 (1st Cir. 2014)).
    Here, even accepting Dusel's premise that a jury could
    supportably find on this record that he was not responsible for
    the precise misconduct alleged by FM Global,5 it does not follow
    that a jury could supportably find on this record that FM Global's
    leaders likely did not     "believe [their] stated reason to be
    credible."   Mesnick, 
    950 F.2d at 824
    .   And, we see nothing in our
    review of the record that would permit such a finding.6
    5 We note that, despite Dusel's contentions, it appears
    undisputed from the summary judgment record that, inter alia, Dusel
    improperly charged HBM for his wife and daughter's phone plans for
    an extended period of time, failed to inform company investigators
    about these charges even as he sought to remove these plans from
    the company account, and entered company cafeterias over eighty
    times, frequently after business hours, wherein video evidence
    appeared to show him leaving with full bags that had been empty
    minutes before.
    6 Dusel also points to affidavits from two other former FM
    Global employees averring, in a conclusory fashion, that they
    believe age was a factor in their terminations. But we do not see
    how these separate allegations of age discrimination meaningfully
    bear on Dusel's own claims, and, absent more, are insufficient to
    give rise to any inference that would help Dusel surmount the
    summary judgment hurdle.      See Medina-Munoz, 896 F.2d at 10
    ("Particularly in a case like this one, where the employee's
    evidence of pretext is tenuous, these fragmentary tendrils do not
    suffice, without more, to prove that [the employer's] dismissal of
    [the employee] was motivated by age discrimination.").
    - 20 -
    Thus, while it is true that "[t]here are many veins of
    circumstantial evidence that may be mined by a plaintiff" to show
    pretext, id., Dusel's excavations fail to surface any meaningful
    ore.   We therefore conclude that there is no triable issue of fact
    as to whether "the defendant's proffered reason for its employment
    decision       was   not   the   real     reason,    but    is     a    pretext     for
    discrimination."       Matthews, 686 N.E.2d at 1309.              Accordingly, the
    district court did not err in granting summary judgment on the
    age-discrimination         claim.       Cf.   Medina-Munoz    v.       R.J.    Reynolds
    Tobacco Co., 
    896 F.2d 5
    , 8 (1st Cir. 1990) ("Even in cases where
    elusive concepts such as motive or intent are at issue, summary
    judgment may be appropriate if the nonmoving party rests merely
    upon     conclusory        allegations,        improbable        inferences,        and
    unsupported speculation.").
    3. The Retaliation Claim
    Under Mass. Gen. Laws ch. 151B, § 4(4), it is illegal
    for an employer "to discharge, expel or otherwise discriminate
    against any person because he has opposed any practices forbidden
    under this chapter or because he has filed a complaint, testified
    or assisted in any proceeding under section five [of Mass. Gen.
    Laws ch. 151B]." The framework applicable to assessing retaliation
    claims    is    similar     to   that    described    earlier          for    the   age-
    discrimination        claim,     "albeit      with   slight        modifications."
    Mesnick, 
    950 F.2d at 827
    .           "In the absence of direct evidence of
    - 21 -
    a    retaliatory   motive,   to    make    out    a    prima    facie    case    of
    retaliation, the plaintiff must show that 'he engaged in protected
    conduct, that he suffered some adverse action, and that "a causal
    connection existed between the protected conduct and the adverse
    action."'" Psy-Ed Corp. v. Klein, 
    947 N.E.2d 520
    , 530 (Mass. 2011)
    (quoting Mole v. Univ. of Mass., 
    814 N.E.2d 329
    , 338-39 (Mass.
    2004)); see also Noviello v. City of Boston, 
    398 F.3d 76
    , 88 (1st
    Cir. 2005) ("To engage the gears of [§ 4(4)], a plaintiff must
    show that (i) []he undertook protected conduct, (ii) []he suffered
    an adverse employment action, and (iii) the two were causally
    linked.").    As before, following the McDonnell Douglas framework,
    if the employee successfully makes a prima facie case, the burden
    of   production    then   shifts   to     the    employer      to   articulate    a
    legitimate, nondiscriminatory reason for the adverse employment
    action, at which point the burden returns to the employee to prove
    that this rationale was pretextual.             See Verdrager, 50 N.E.3d at
    800.
    The district court dismissed Dusel's retaliation claim,
    holding that he failed to establish a causal link between any
    arguably protected conduct and the adverse employment actions
    taken against him.        Dusel, 
    2021 WL 2953322
    , at *7-8.                Even if
    Dusel's   apparent   disagreement       with     the   outcome      of   the   2015
    investigation (following Holland's first complaint about Casey's
    alleged harassment and other misconduct) constituted protected
    - 22 -
    activity     under    § 4(4),        the     court        determined,        his       mere
    participation in the 2018 investigation did not.                      Id. at *7.         As
    such, the time elapsed between any plausibly protected activity
    and Dusel's eventual termination was too great -- and any inference
    of causality thus too attenuated -- for Dusel to make a successful
    prima facie case of retaliation, "especially when the intervening
    findings of misconduct are considered."                   Id. at *8.
    On appeal, Dusel again contends that the district court
    erred in failing to identify disputed issues of material fact
    sufficient    to   defeat    summary       judgment.         To     this    end,      Dusel
    catalogues eight instances of putatively protected activity in the
    run-up to his 2018 termination, including initially informing his
    supervisors of Holland's concerns regarding Casey prior to her
    February 2018 complaint and each interview with HR pursuant to
    that   investigation.            Dusel    also     contends       that     his    various
    pretermination complaints to FM Global, in which he alleged the
    company was retaliating against him (e.g., by relocating the HBM
    management    team    to    FM    Global's        Rhode    Island     headquarters),
    themselves qualify as opposition to practices forbidden under
    Massachusetts      antidiscrimination         statute.         In    each        of   these
    instances, Dusel claims that he has provided adequate evidence of
    protected conduct -- with sufficient temporal proximity to his
    termination to permit an inference of retaliation -- such that the
    district court's grant of summary judgment was in error.
    - 23 -
    We need not resolve the disputes regarding which of
    Dusel's actions and statements constitute protected activity under
    Massachusetts law because, even assuming that those questions were
    to be resolved in his favor, we conclude that he has not met his
    burden at the subsequent stages of the McDonnell Douglas framework,
    wherein he must present evidence that would support a finding of
    a causal nexus between the protected conduct and his termination
    (to round out his prima facie case) and, subsequently, that FM
    Global's proffered legitimate, nondiscriminatory reasons for his
    termination were pretextual.        See Psy-Ed Corp., 947 N.E.2d at 530;
    Verdrager, 50 N.E.3d at 800.        In practice, these questions tend to
    blend into one another because, "for retaliation claims, [the]
    third element of [the] prima facie case and [the] third McDonnell
    Douglas stage are 'not easily distinguishable.'"           Soto-Feliciano
    v. Villa Cofresí Hotels, Inc., 
    779 F.3d 19
    , 32 (1st Cir. 2015)
    (quoting Wells v. Colo. Dep't of Transp., 
    325 F.3d 1205
    , 1218 (10th
    Cir.   2003));   see   also   
    id.
       (moving   "directly   to   see   whether
    [plaintiff] has raised a genuine issue of material fact that the
    defendants' stated grounds for firing him were in fact a pretext
    for retaliatory animus" because "[i]f he has met this showing,
    then he necessarily has met the lesser burden that he bears at the
    prima facie stage of showing a causal connection between his
    protected conduct and the decision to fire him").              As such, we
    assess whether Dusel can establish that FM Global's articulated
    - 24 -
    rationale for the adverse employment actions was pretext masking
    a retaliatory animus.
    For many of the same reasons we have rehearsed supra
    regarding the age-discrimination claim, we hold that Dusel cannot
    establish said pretext.        As before, FM Global has proffered
    legitimate, nondiscriminatory reasons for Dusel's termination,
    viz., Dusel's violation of company policy vis-à-vis his use of the
    company's cell phone lines, his apparent attempts to conceal said
    behavior from FM Global investigators, and his after-hours visits
    to company facilities which led FM Global to conclude he had been
    engaging in food theft.7
    In attempting to    demonstrate    causality and   pretext,
    Dusel claims that the "close temporal proximity between events"
    and       his   "significant      track       record   of      positive
    7While Dusel primarily focuses on his September 2018
    termination, he also contends that FM Global's March 2018 decision
    to relocate HBM's senior staff to Rhode Island and reorganize the
    company's reporting structure, his May 2018 performance review (in
    which he received a "Meets Expectations" rating), and FM Global's
    investigations in July and August 2018 of Dusel's potential
    misconduct also constitute retaliation. FM Global disputes that
    these actions can plausibly be considered retaliatory in nature,
    offering evidence that the investigations into Dusel's cell phone
    and the cafeteria use arose independently from an unrelated
    investigation and that the Rhode Island relocation and attendant
    managerial changes -- which impacted multiple members of HBM's
    management team, not Dusel alone -- were not punitive in nature,
    but intended to increase cohesion and oversight in light of FM
    Global's conclusion that Dusel could not manage his staff. By any
    measure, these, too, constitute legitimate and nondiscriminatory
    reasons for FM Global's actions.
    - 25 -
    performance . . . give an inference of causal connection from his
    protected activity to his termination."
    We are unpersuaded.        While circumstantial evidence of
    temporal proximity between a protected activity and an adverse
    employment action can, in some cases, give rise to an inference
    that an employer's stated basis for the decision was pretext
    masking for retaliatory animus, that evidence must be considered
    alongside the rest of the summary judgment record.           See Psy-Ed
    Corp., 947 N.E.2d at 534 n.31 ("It is true that . . . [t]iming and
    sequencing of events may, depending on the facts of a case, be
    sufficient to raise an inference of causation, and although that
    inference may be overcome by the defendant's contrary evidence, it
    also may become the basis of the plaintiff's proof that retaliation
    was in fact determinative." (internal citations omitted)).
    Here, even if his apparent opposition to the conclusion
    of the 2015 investigation and alerting his superiors to Casey's
    complaints in February 2018 qualify as protected conduct, and even
    if (more dubiously) Dusel's informal complaints to FM Global
    management in April and June 2019 alleging retaliation themselves
    qualify as protected activities, we conclude that no reasonable
    juror on the facts of this case could infer that FM Global's stated
    basis for Dusel's termination was pretextual based on the time
    that   elapsed   between   those    events   and   his   September   2018
    termination.     For one thing, FM Global has produced evidence --
    - 26 -
    uncontradicted by Dusel -- showing that Dusel's alleged misconduct
    came to light as a result of a separate matter involving separate
    employees, and in closer proximity to Dusel's termination than
    Dusel's last claimed protected activity.                 For another, and as we
    have already explained in connection with his age discrimination
    claim, Dusel has not presented other evidence that would allow a
    reasonable factfinder to conclude that FM Global's proffered basis
    for his termination is "so implausible that [FM Global] more likely
    than not does not believe it."            Wayfair, 27 F.4th at 80.            We see
    "no reason to reach a different conclusion" as to the state of the
    record    in    connection    with      Dusel's    retaliation       claim,    Soto-
    Feliciano, 779 F.3d at 32, and he has provided none.
    In   consequence,   we    are    unable    to   see   how   temporal
    proximity alone would allow a reasonable juror to infer that FM
    Global's stated reason for firing Dusel was pretext for its
    retaliatory animus toward him.             By the same token, we are also
    unpersuaded by Dusel's gesture toward his track record of positive
    previous performance, as that evidence does not bear on FM Global's
    evidence as to its subsequent discovery of his misconduct -- which
    forms the basis of its legitimate, nondiscriminatory rationale for
    his termination.
    Thus, as with the age-discrimination claim, Dusel has
    not marshaled evidence evincing a genuine dispute of material fact
    as   to   whether      FM   Global's    adverse     employment       actions    were
    - 27 -
    pretextual and retaliatory in nature.   We therefore agree with the
    district court that "Dusel has not presented evidence from which
    a reasonable jury could infer that FM Global's articulated reasons
    for his discharge did not form the real basis for its employment
    decision."   Dusel, 
    2021 WL 2953322
    , at *8.
    B. The District Court Did Not Err in Denying Dusel's Evidentiary
    Motions
    Dusel lastly claims that the district court erred in
    denying certain of his evidentiary motions.       Specifically, he
    contests the denial of his motion to strike the affidavits of
    Robert Fitzpatrick, Erik Waal, and Kevin Ingram; his motion to
    strike certain paragraphs from FM Global's statement of undisputed
    material facts; and his motion to exclude certain after-acquired
    evidence.
    1. Standard of Review
    We begin by emphasizing that we seldom disturb the
    district court's rulings on evidentiary issues.    "Only rarely --
    and in extraordinarily compelling circumstances -- will we, from
    the vista of a cold appellate record, reverse a district court's
    on-the-spot judgment concerning the relative weighing of probative
    value and unfair effect."   Freeman, 
    865 F.2d at 1340
    .   "We review
    challenges to a district court's discovery determinations under an
    abuse of discretion standard."   Pina v. Child.'s Place, 
    740 F.3d 785
    , 790 (1st Cir. 2014).    "Accordingly, we 'will intervene in
    - 28 -
    such matters only upon a clear showing of manifest injustice, that
    is, where the lower court's discovery order was plainly wrong and
    resulted in substantial prejudice to the aggrieved party.'"     Id.
    at 791 (quoting Dennis v. Osram Sylvania, Inc., 
    549 F.3d 851
    , 860
    (1st Cir. 2008)).   "At every stage of the proceeding, the court
    must disregard all errors and defects that do not affect any
    party's substantial rights." Fed. R. Civ. P. 61; see also Tersigni
    v. Wyeth, 
    817 F.3d 364
    , 369 (1st Cir. 2016) ("We may affirm in
    spite of an erroneous evidentiary ruling if the error was harmless,
    meaning that 'it is highly probable that the error did not affect
    the outcome of the case.'" (quoting McDonough v. City of Quincy,
    
    452 F.3d 8
    , 19-20 (1st Cir. 2006))).
    2. Motion to Strike Affidavit of Robert Fitzpatrick
    FM Global proffered an affidavit of Robert Fitzpatrick,
    Information Security Specialist at FM Global, in support of its
    motion for summary judgment.   In it, Fitzpatrick stated that after
    Dusel was terminated and pornographic materials were discovered
    within his paper files, FM Global asked him to conduct an "in-
    depth review of the[] contents" of Dusel's computers, cell phones,
    and other storage devices.   He stated that in his review of Dusel's
    electronic devices, he found over 190,000 images and several
    thousand videos that were sexually explicit.   He estimated that it
    would have taken at least a thousand hours to download said content
    and that it was the largest cache of such material that he had
    - 29 -
    seen outside of his career in law enforcement.                 Dusel moved to
    strike said affidavit.        The district court denied the motion to
    strike,   holding   that    Fitzpatrick's      affidavit      did   not   contain
    expert opinions and that Fitzpatrick was disclosed in FM Global's
    discovery responses.
    Dusel    argues    that    the     district   court       abused   its
    discretion by denying his motion to strike Fitzpatrick's affidavit
    for two reasons, which are substantially the same arguments that
    he advanced below.     First, he argues that the affidavit contained
    expert opinions although Fitzpatrick was not disclosed as an
    expert.      According to Federal Rule of Evidence 701, opinion
    testimony by a lay witness must be limited to testimony that is
    "(a) rationally based on the witness's perception; (b) helpful to
    clearly understanding the witness's testimony or to determining a
    fact in issue; and (c) not based on scientific, technical, or other
    specialized knowledge within the scope of Rule 702."                Dusel argues
    that   Fitzpatrick's       additional    commentary      on    the    cache   of
    pornographic material -- specifically, the amount of time it would
    have taken to download and his comparison to what he saw during
    his career in law enforcement -- veers into the realm of expert
    testimony.    Second, Dusel argues that FM Global failed to disclose
    Fitzpatrick as a witness in its required initial disclosures under
    Federal Rule of Civil Procedure 26(a) and that FM Global is
    - 30 -
    therefore barred from using his testimony in support of its summary
    judgment motion per Federal Rule of Civil Procedure 37(c).
    Even assuming arguendo that the Fitzpatrick affidavit
    contained unqualified expert opinion and that Fitzpatrick was not
    properly disclosed as a witness for the purposes of Rule 26(a),
    any such errors are harmless as neither the district court's
    holding nor our de novo review relies on Fitzpatrick's description
    of the sexually explicit material found on Dusel's computer or his
    additional commentary.     Instead, both rely on the other grounds
    for termination elucidated in the record which we have described
    in   detail    supra.           "Our     harmlessness        inquiry   is
    whether . . . admission    of   the    evidence   affected    plaintiff's
    substantial rights.     The central question is whether this court
    can say with fair assurance that the judgment was not substantially
    swayed by the error."     Gay v. Stonebridge Life Ins. Co., 
    660 F.3d 58
    , 62 (1st Cir. 2011) (quoting Rubert–Torres v. Hosp. San Pablo,
    Inc., 
    205 F.3d 472
    , 480 (1st Cir. 2000)).         In this case, we can
    say with such assurance that neither the district court's judgment
    nor our de novo review was affected by any alleged error as neither
    court relied on the evidence that Dusel disputes.              As a final
    point, we note that the affidavits of Erik Waal and Kevin Ingram,
    both of which were allowed into the summary judgment record and
    neither of which are sufficiently challenged on appeal as we hold
    - 31 -
    infra, also discussed the sexually explicit material found on
    Dusel's computer that the Fitzpatrick affidavit discusses.
    3. Motion to Exclude Certain After-Acquired Evidence
    Dusel's second evidentiary argument concerns the same
    cache of pornographic and sexually explicit materials described
    above.     At    the   district   court,     Dusel   moved    to   exclude    this
    evidence, arguing that it was discovered after his termination and
    is therefore irrelevant and presented a risk of unfair prejudice.
    The   district    court   rejected    this    argument,      finding   that    the
    evidence   qualified      as   after-acquired    evidence      which   could    be
    admitted to assess damages but not liability.
    On appeal, Dusel again argues that the evidence was
    irrelevant as it was discovered after he was terminated and
    therefore is not relevant to the reasons for his termination.                   He
    also argues that the district court improperly classified the
    evidence as after-acquired evidence.
    "Where an employer seeks to rely upon after-acquired
    evidence of wrongdoing, it must first establish that the wrongdoing
    was of such severity that the employee in fact would have been
    terminated on those grounds alone if the employer had known of it
    at the time of the discharge." McKennon v. Nashville Banner Publ'g
    Co., 
    513 U.S. 352
    , 362-63 (1995).            Such evidence, however, is not
    relevant to the employer's liability but is only admissible to
    determine damages, as certain remedies for improper termination
    - 32 -
    may be limited based on after-acquired evidence.                 See Nieves-
    Villanueva v. Soto-Rivera, 
    133 F.3d 92
    , 101 (1st Cir. 1997).               We
    agree with FM Global and the district court that, based on the
    facts of the instant case, the threshold showing of severity has
    been met.     We see no abuse of discretion in the admission of the
    after-acquired evidence as its admission was not plainly wrong.
    Further, because no claims survive summary judgment and FM Global
    has voluntarily dismissed any counterclaims, there is no prejudice
    to Dusel as this case will not reach the damages portion of
    adjudication.
    4. Motion to Strike Affidavits of Erik Waal and Kevin Ingram;
    Motion to Strike Certain Paragraphs from FM Global's Statement of
    Undisputed Material Facts
    Finally, Dusel argues that the district court erred in
    denying his motion to strike certain paragraphs from FM Global's
    statement of undisputed material facts, and that it also erred in
    denying his motion to strike FM Global's affidavits of Erik Waal
    and Kevin Ingram.      However, Dusel develops no real argument on
    either of these points. As to the statement of undisputed material
    facts, Dusel provides us with the rule for such statements,
    Massachusetts Local Rule 56.1, and states that the denial of his
    motion   "flies   in   the   face   of   the   intention   and    spirit   of
    [Massachusetts Local Rule] 56.1" and therefore was an abuse of
    discretion.    But, he provides no relevant caselaw or other support
    for this argument.     Therefore, we deem said argument waived.            See
    - 33 -
    United States v. Zannino, 
    895 F.2d 1
    , 17 (1st Cir. 1990) ("[I]ssues
    adverted to in a perfunctory manner, unaccompanied by some effort
    at developed argumentation, are deemed waived.").
    So too goes Dusel's argument on appeal that the district
    court abused its discretion by denying his motion to strike the
    affidavits of Kevin Ingram and Erik Waal.              Dusel again sets forth
    the standard, citing Federal Rule of Civil Procedure 56(c)(4) as
    applicable to affidavits at the summary judgment stage, and then
    proceeds to state that his motion to strike was "improperly denied"
    and   that   reversal     is   merited    based   on   abuse   of    discretion.
    However, Dusel again fails to explain how the district court's
    denial was an abuse of discretion or provide any support for his
    conclusions.       "It is not enough merely to mention a possible
    argument     in   the   most   skeletal   way,    leaving   the     court   to   do
    counsel's work, create the ossature for the argument, and put flesh
    on its bones."      
    Id.
        Accordingly, we also consider this argument
    waived.
    III. Conclusion
    The judgment of the district court is
    AFFIRMED.
    - 34 -