Calhoun v. Yamaha Motor Corp. , 350 F.3d 316 ( 2003 )


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  •                                                                                                                            Opinions of the United
    2003 Decisions                                                                                                             States Court of Appeals
    for the Third Circuit
    11-18-2003
    Calhoun v. Yamaha Motor Corp
    Precedential or Non-Precedential: Precedential
    Docket No. 02-4098
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    PRECEDENTIAL
    Filed November 18, 2003
    UNITED STATES COURT OF APPEALS
    FOR THE THIRD CIRCUIT
    Nos. 02-4098 & 02-4162
    LUCIEN B. CALHOUN; ROBIN L. CALHOUN,
    Individually and as Administrators of the
    Estate of Natalie K. Calhoun, Deceased
    v.
    YAMAHA MOTOR CORPORATION, U.S.A.; YAMAHA
    MOTOR CO., LTD.; PALMAS DEL MAR COMPANY;
    PALMAS DEL MAR, INC.; PALMAS YACHT CLUB, INC.;
    MARINA DE PALMAS YACHT CLUB, INC.; MAXXAM
    PROPERTIES, INC.; ABC CORPORATION(S); XYZ
    PARTNERSHIP(S); CANDELERO HOTEL CORPORATION;
    MARINA DE PALMAS SHIPYARD, INC.
    Lucien B. Calhoun; Robin L. Calhoun,
    Individually and as Administrators of the
    Estate of Natalie K. Calhoun, Deceased,
    Appellants at No. 02-4098
    Yamaha Motor Corporation, U.S.A.;
    Yamaha Motor Co., Ltd.,
    Appellants at No. 02-4162
    On Appeal from the United States District Court
    for the Eastern District of Pennsylvania
    D.C. Civil Action No. 90-cv-04295
    (Honorable Louis H. Pollak)
    Argued: July 29, 2003
    Before: SCIRICA, Chief Judge, RENDELL and AMBRO,
    Circuit Judges
    2
    (Filed: November 18, 2003)
    DAVID F. BINDER, ESQUIRE
    (ARGUED)
    A. ROY DeCARO, ESQUIRE
    Raynes, McCarty, Binder, Ross &
    Mundy
    1845 Walnut Street, Suite 2000
    Philadelphia, Pennsylvania 19103
    Attorneys for Appellants/Cross-
    Appellees, Lucien B. Calhoun;
    Robin L. Calhoun, Individually and
    as Administrators of the Estate of
    Natalie K. Calhoun, Deceased
    JAMES P. DONOVAN, ESQUIRE
    (ARGUED)
    Wilson, Elser, Moskowitz, Edelman
    & Dicker
    150 East 42nd Street
    New York, New York 10017
    JONATHAN DRYER, ESQUIRE
    Wilson, Elser, Moskowitz, Edelman
    & Dicker
    The Curtis Center, Suite 1130 East
    Sixth and Walnut Streets
    Philadelphia, Pennsylvania 19106
    Attorneys for Appellees/Cross-
    Appellants, Yamaha Motor
    Corporation, U.S.A. and Yamaha
    Motor Co., Ltd.
    OPINION OF THE COURT
    SCIRICA, Chief Judge.
    In this products liability claim under maritime law, a jury
    rendered a defense verdict. The principal issue on appeal is
    the proper application of Federal Rule of Evidence 702 to
    the proffered testimony of plaintiffs’ experts.
    3
    I.
    Because this matter has been twice before our court, see
    Calhoun v. Yamaha Motor Corp., U.S.A., 
    40 F.3d 622
     (3d
    Cir. 1994); Calhoun v. Yamaha Motor Corp., U.S.A., 
    216 F.3d 338
     (3d Cir. 2000), and also before the Supreme
    Court, see Yamaha Motor Corp., U.S.A. v. Calhoun, 
    516 U.S. 199
     (1996), its tragic facts have been well documented. But
    we detail certain facts as they relate to the matters
    currently under appeal.
    In June 1989, twelve-year-old Natalie Calhoun was
    vacationing with her friend, thirteen-year-old Melanie Fox,
    and Melanie’s family at the Palmas del Mar resort in Puerto
    Rico. On June 6, Melanie’s mother, Corinne Fox, gave
    permission to the girls to rent a jet ski at the marina.
    Melanie and Natalie rented a Yamaha Wavejammer
    WJ500G Personal Water Craft from nineteen-year-old
    Samuel Roffe, a beach concessionaire at the Palmas del
    Mar resort. Affixed to the jet ski was a warning that the
    minimum recommended age for operation was fourteen.
    Neither girl had ridden a jet ski before.
    In Natalie’s presence, Roffe gave Melanie ten minutes of
    instruction. No parents or guardians were present at this
    time. While Melanie was riding the jet ski, her mother
    arrived at the marina. Roffe assured Mrs. Fox that riding
    the jet ski was “safe.” After Melanie’s uneventful thirty
    minute ride, she reported that the jet ski was “fun” and
    “easy.”
    When it was Natalie’s turn, she was uncertain and
    expressed doubts. Mrs. Fox left the decision to Natalie, and
    eventually, she elected to ride. Roffe asked Natalie whether
    she was the requisite fourteen years of age, and she
    responded affirmatively. Roffe then gave her the same
    instructions given to Melanie. Natalie mounted the machine
    and began her ride in the lagoon near the resort.
    Unlike Melanie, however, Natalie struggled and fell off
    while attempting to turn. Alarmed by this development,
    Mrs. Fox urged Roffe to “bring her back.” Roffe rode out to
    Natalie in another jet ski, but by the time he reached her,
    she had remounted and assured him she was “okay.”
    Natalie restarted the jet ski, made a sudden turn, and
    4
    planed at high speed across the lagoon toward an anchored
    boat. As she approached the boat, she screamed but did
    not appear to attempt to veer away. Roffe testified she
    appeared “frozen” and “scared stiff.” Tragically, Natalie
    crashed into the boat and died from massive head and neck
    trauma.
    Natalie’s parents, Lucien and Robin Calhoun, brought
    suit against Yamaha Motor Company, Ltd. and Yamaha
    Motor Corporation, U.S.A., the manufacturer and
    distributor of the jet ski.1 The Calhouns asserted several
    bases for recovery, including strict liability, negligence, and
    breach of implied warranties of merchantability and fitness
    for a particular purpose. Plaintiffs focused on an alleged
    defect with the design of the jet ski’s accelerating
    mechanism, which is referred to as a “squeeze finger
    throttle” and resembles the braking mechanism on a
    bicycle. Plaintiffs also alleged the warnings were
    inadequate. The warning on the foot well of the jet ski
    provided in part:
    3.   MINIMUM RECOMMENDED OPERATOR AGE: 14
    A MINOR USING THIS WATER VEHICLE REQUIRES
    CLOSE ADULT SUPERVISION. CHECK FEDERAL/
    STATE LAWS FOR MINIMUM AGE REQUIREMENTS.
    After several appeals, the suit went to trial.2 A jury
    rendered a verdict for defendants.
    At trial, the District Court made several rulings that
    plaintiffs challenge on appeal. Although the District Court
    permitted plaintiffs’ three expert witnesses to testify, it
    limited the extent of their testimony. Moreover, the District
    Court refused to submit the negligence claims to the jury,
    holding that plaintiffs could proceed only on their strict
    liability claims.3 Furthermore, in jury interrogatories4 and
    1. The Calhouns brought suit individually and as administrators of their
    daughter’s estate. Yamaha Motor Company, Ltd. and Yamaha Motor
    Corporation, U.S.A. are collectively referred to as Yamaha.
    2. Of note, we determined that “federal maritime standards govern the
    adjudication” of Yamaha’s liability. Calhoun, 
    216 F.3d at 351
    .
    3. At the close of evidence, Yamaha moved for judgment as a matter of
    law under Fed. R. Civ. P. 50 on both the negligence and strict liability
    claims. The District Court granted the motion as to the negligence claims
    but denied it as to the strict liability claims.
    4. The interrogatories first asked the jury to determine whether the jet
    5
    instructions,5 the District Court applied comparative fault
    ski had a defective design and/or a defect due to an inadequate warning,
    which was a substantial factor in causing Natalie’s death. Only if the
    jury determined that the jet ski was defective in such manner was the
    jury to proceed to the interrogatories concerning Roffe and Palmas del
    Mar. These latter interrogatories asked:
    5.   Do you find that Samuel Roffe and/or Palmas del Mar were
    negligent?
    Yes___     No___
    6.   Do you find that the negligence of Samuel Roffe and/or Palmas
    del Mar was a substantial factor in causing Natalie Calhoun’s
    death?
    Yes___     No___
    7.   Having found that Yamaha manufactured and sold a defective
    Wavejammer that was a substantial factor in causing Natalie
    Calhoun’s death, and that the negligence of Samuel Roffe
    and/or Palmas del Mar was a substantial factor in causing
    Natalie Calhoun’s death, what do you find to be the relative fault
    of those substantial factors? You are to express this conclusion
    in percentages, and the total must be 100%.
    Defect(s) of Yamaha Wavejammer:                              ___%
    Negligence of Samuel Roffe and/or Palmas del Mar:            ___%
    Total:                                                   100%
    5. The court instructed the jury:
    It is for you, the jury, to determine whether the Wavejammer was
    defective and whether any defect was a substantial factor in causing
    Natalie Calhoun’s death. If you should determine that her injuries
    were so caused, you will have two additional issues to consider.
    First, you will be responsible for determining whether Samuel
    Roffe and/or [Palmas del Mar], neither of whom, of course, is a party
    to this litigation, were negligent. And whether that negligence also
    was a substantial factor in causing Natalie Calhoun’s death.
    And if the answer to that question is in the affirmative, you will
    also have to apportion the fault between Yamaha, Samuel Roffe, and
    [Palmas del Mar] in percentage terms.
    6
    principles and conditionally asked the jury to consider the
    negligence of two non-parties to the suit.
    The jury returned a verdict in favor of Yamaha on the
    strict liability claims. The Calhouns appeal, arguing that
    errors made by the District Court require reversal and a
    new trial.6 Yamaha cross-appeals, contending the District
    Court should have precluded the testimony of plaintiffs’
    experts altogether and granted its motion for summary
    judgment.
    II.
    Plaintiffs proffered three expert witnesses to testify at
    trial. After conducting extensive Daubert hearings including
    individual voir dire, the District Court determined that all
    could testify but limited the extent of their testimony. We
    review for abuse of discretion. See Gen. Elec. Co. v. Joiner,
    
    522 U.S. 136
    , 138-39 (1997) (“[A]buse of discretion is the
    appropriate standard” for “reviewing a trial court’s decision
    to admit or exclude expert testimony.”).7
    Fed. R. Evid. 702 governs the admissibility of expert
    testimony. The Rule provides:
    If scientific, technical, or other specialized knowledge
    will assist the trier of fact to understand the evidence
    or to determine a fact in issue, a witness qualified as
    an expert by knowledge, skill, experience, training, or
    education, may testify thereto in the form of an opinion
    or otherwise, if (1) the testimony is based upon
    sufficient facts or data, (2) the testimony is the product
    of reliable principles and methods, and (3) the witness
    has applied the principles and methods reliably to the
    facts of the case.
    6. We have jurisdiction under 
    28 U.S.C. § 1291
    .
    7. In regard to Defendants’ cross-appeal, we do not believe the District
    Court abused its discretion in allowing plaintiffs’ experts to testify on a
    limited basis. In any event, the District Court granted defendants’ motion
    for judgment as a matter of law on the negligence claims, and the jury
    returned a verdict in favor of defendants on the strict liability claims.
    This outcome will not be disturbed. As such, any alleged error in
    allowing plaintiffs’ experts to testify is without consequence.
    7
    Fed. R. Evid. 702. Amended in 2000, Fed. R. Evid. 702
    represents the logical outgrowth and memorialization of the
    Supreme Court’s landmark cases establishing the
    standards for admitting expert testimony.8 In Daubert v.
    Merrell Dow Pharmaceuticals, Inc., 
    509 U.S. 579
     (1993), the
    Supreme Court charged trial judges with the responsibility
    of acting as “gatekeepers” to exclude unreliable expert
    testimony, 
    id. at 597
    , and in Kumho Tire Co. v. Carmichael,
    
    526 U.S. 137
     (1999), clarified that this “gatekeeper”
    function applies not only to testimony based on “scientific”
    knowledge but to testimony based on “technical” and “other
    specialized” knowledge as well. 
    Id. at 141
    .9
    We have addressed the requirements of Fed. R. Evid.
    702, focusing on the “trilogy of restrictions on expert
    testimony: qualification, reliability and fit.” Schneider v.
    Fried, 
    320 F.3d 396
    , 405 (3d Cir. 2003). First, the witness
    must be qualified to testify as an expert. Qualification
    requires “that the witness possess specialized expertise.” 
    Id.
    “We have interpreted this requirement liberally,” holding
    that “a broad range of knowledge, skills, and training
    qualify an expert as such.” In re Paoli R.R. Yard PCB Litig.,
    
    35 F.3d 717
    , 741 (3d Cir. 1994) (“Paoli II”). Second, the
    testimony must be reliable. In other words, “the expert’s
    opinion must be based on the ‘methods and procedures of
    science’ rather than on ‘subjective belief or unsupported
    speculation’; the expert must have ‘good grounds’ for his or
    her belief.” 
    Id. at 742
     (quoting Daubert, 
    509 U.S. at 590
    ).
    An assessment of “the reliability of scientific evidence under
    Rule 702 requires a determination as to its scientific
    validity.” 
    Id.
     Third, the expert testimony must “fit,” id. at
    743, meaning “the expert’s testimony must be relevant for
    the purposes of the case and must assist the trier of fact.”
    Schneider, 
    320 F.3d at 405
    .
    8. The Advisory Committee on Evidence Rules noted that Fed. R. Evid.
    702 was amended in response to Daubert v. Merrell Dow
    Pharmaceuticals, Inc., 
    509 U.S. 579
     (1993), and cases applying Daubert.
    Fed. R. Evid. 702 advisory committee’s note.
    9. Fed. R. Evid. 702 “affirms the trial court’s role as gatekeeper and
    provides some general standards that the trial court must use to assess
    the reliability and helpfulness of proffered expert testimony.” Fed. R.
    Evid. 702 advisory committee’s note.
    8
    Here, the dispute centers on the second element, whether
    the proffered testimony of plaintiffs’ experts was reliable.
    While defendants asserted the experts’ qualifications were
    lacking in general, the thrust of their challenge was that
    the proposed testimony did not derive from scientific
    methods and procedures, but was simply unsupported
    opinion. In this respect, the District Court held that certain
    aspects of the experts’ proposed testimony lacked proper
    foundation and was inadmissible.
    In determining whether testimony is reliable, we are
    guided by several factors:
    (1) whether a method consists of a testable hypothesis;
    (2) whether the method has been subject to peer
    review; (3) the known or potential rate of error; (4) the
    existence and maintenance of standards controlling the
    technique’s operation; (5) whether the method is
    generally accepted; (6) the relationship of the technique
    to methods which have been established to be reliable;
    (7) the qualifications of the expert witness testifying
    based on the methodology; and (8) the non-judicial
    uses to which the method has been put.
    Paoli II, 
    35 F.3d at
    742 n.8. In assessing reliability, a court
    need not rely exclusively on this list and may take into
    account any other relevant factors, 
    id. at 742
    ; however, this
    list provides an ample starting point.
    With this framework in mind, we examine each expert’s
    proposed testimony. The District Court carefully and
    thoughtfully restricted testimony that offered opinions on
    specific matters without reliable foundation. For example,
    the District Court declined to permit testimony on the
    proper age requirement for jet ski operators, without any
    specific support—such as studies or data indicating that
    persons above a certain age are more capable of operating
    the jet ski. While the background, education, and training
    may provide an expert with general knowledge to testify
    about general matters, more specific knowledge is required
    to support more specific opinions.
    A.
    Plaintiffs proffered Dr. Edward W. Karnes to testify that
    the jet ski was defectively designed because riders would
    9
    accidentally activate the throttle by clenching their hands
    as a “stress reaction.” Plaintiffs also proffered Dr. Karnes to
    testify that the warnings on the jet ski should have
    restricted operation to those sixteen and older. The District
    Court prevented Dr. Karnes from testifying on these
    matters.
    Dr. Karnes holds a doctorate in experimental psychology
    and is an emeritus professor of psychology at Metropolitan
    State College in Denver. Among his specialties is human
    factors engineering.10 He worked as a human factors
    engineer at the Martin Marietta Corporation in Denver,
    serving as the head of human factors research for six years.
    Although defendants stress that Dr. Karnes has no degree
    in engineering and lacks expertise in marine vessel design
    or operations, the District Court qualified him as an expert
    because of his extensive experience in general design and
    operations.
    An expert may be generally qualified but may lack
    qualifications to testify outside his area of expertise. The
    District Court allowed Dr. Karnes to describe the squeeze
    finger throttle on the jet ski and to testify that because of
    the throttle’s similarity to a bicycle brake, a child in a
    stress situation would naturally squeeze the mechanism in
    order to stop the jet ski. Dr. Karnes’s other theory was not
    permitted—that as a “stress reaction,” a person would have
    a tendency to clench her hands, which would inadvertently
    activate the squeeze finger throttle of a Yamaha jet ski.
    Furthermore, Dr. Karnes was not permitted to offer an
    overall conclusion that the design of the throttle was
    defective.
    With respect to warnings, the District Court allowed Dr.
    Karnes to testify in general about how to design an effective
    warning. Dr. Karnes was also permitted to opine that the
    warning on the jet ski deviated from the proper criteria,
    making the “vehicle unreasonably dangerous and defective,
    especially for youthful operators.” But the District Court
    prohibited Dr. Karnes from testifying that, in addition to its
    10. Dr. Karnes explained that human factors engineering “is concerned
    with an evaluation of the human factors that are involved in the design
    and use of products, equipment, and facilities.”
    10
    other alleged flaws, the warning on the jet ski should have
    restricted operators to those sixteen and older because Dr.
    Karnes did not have “anything to say to support that
    number rather than a number higher or lower.”
    The District Court gave Dr. Karnes some leeway in
    testifying about certain matters. Dr. Karnes’s general
    knowledge of human factors engineering, along with his
    review of the record evidence, provided an adequate basis
    for his general description of the accelerating mechanism.
    But there was no support for Dr. Karnes’s opinion on an
    asserted “tendency” to clench hands as a “stress reaction.”
    There was no literature confirming this theory, nor
    demonstrable tests. Lacking support, his testimony was
    speculative and unreliable. With no reliable foundation, the
    District Court did not abuse its discretion by prohibiting
    any conclusory statements on the throttle’s design.
    Similarly, Dr. Karnes’s general knowledge in the fields of
    psychology and human factors engineering may allow him
    to testify regarding proper warnings in general. But
    proffering admissible testimony that the proper age for jet
    ski use is sixteen or above requires more specific
    knowledge. The District Court did not abuse its discretion
    in prohibiting Dr. Karnes’s proffered opinion that sixteen
    must be the minimum age.
    B.
    Plaintiffs proffered Albert Bruton to testify that Yamaha’s
    accelerating mechanism was not as safe as other
    alternative designs and that Yamaha’s warning should have
    limited operation to those sixteen and older. The District
    Court refused to allow the proffered testimony.
    Bruton, a lieutenant for San Diego’s Marine Safety
    Services for sixteen years, had extensive experience with jet
    skis. He also had some experience designing warning signs
    for public use, such as signs designating certain marine
    areas for particular purposes, although he never designed
    a warning label for a jet ski or any other product sold to the
    public. Bruton had also conducted “aquatic related
    accident” investigations. As defendants note, Bruton lacks
    11
    formal education or training in engineering, psychology, or
    human factors.
    Bruton’s testimony was also restricted. The District Court
    allowed Bruton to explain how jet skis operate and the
    differences between Yamaha’s jet ski and other brands and
    models. Bruton was also permitted to discuss various
    accelerating mechanisms, explaining how each type works.
    A videotape was played showing Bruton riding a jet ski. But
    Bruton was prohibited from opining as to which jet skis,
    and particularly which accelerating mechanisms, were safer
    because the District Court found his “ranges of
    experiences” did not give him the expertise or knowledge to
    make this determination.
    The District Court permitted Bruton to testify about how
    to frame an effective warning in general, for example, how
    words should be arranged and lettered. But the District
    Court prohibited him from opining on the proper substance
    of a particular warning, including proposed testimony that
    jet ski operations should be restricted to those sixteen and
    older.
    These limitations were well considered. Because Bruton
    was knowledgeable about different types of jet skis and
    their operation, it was appropriate for him to explain such
    matters to the jury. But as noted, Bruton had no education
    or experience in product design of jet skis or accelerating
    mechanisms; nor did he provide scientific, statistical or
    other evidence evaluating the relative safety of different jet
    ski models or their accelerating mechanisms. Bruton had
    neither the general background nor the specific knowledge
    to support his proffered testimony that the “squeeze finger
    throttle” was less safe than other designs.
    With respect to warnings, Bruton was given much
    leeway, especially considering he had never designed a
    warning for any consumer product. As for his proffered
    testimony on the specific substance of such warnings,
    particularly the age requirement, Bruton offered no support
    for his beliefs. His proffered opinions on these matters were
    unreliable, and the District Court properly restricted such
    testimony. There was no abuse of discretion.
    12
    C.
    Plaintiffs proffered Dr. Robert A. Warren to testify that
    the accelerating mechanism was unsafe because it
    resembled a bicycle brake and that Yamaha’s warnings
    were inadequate. The District Court restricted Dr. Warren’s
    testimony on these matters.
    Dr. Warren has a bachelor’s degree in naval architecture
    and marine engineering, as well as higher degrees in other
    fields. He worked with the Navy and the Department of
    Defense and served as an accident reconstruction
    consultant with a focus on marine engineering and boat
    accidents. Defendants acknowledge that Dr. Warren’s
    qualifications are generally sufficient, and the District
    Court correctly held that his background qualified him to
    testify as an expert.
    But as with the other experts, the District Court
    restricted the specifics of Dr. Warren’s testimony. The
    District Court allowed Dr. Warren to describe the squeeze
    finger throttle on the jet ski but forbade his proffered
    testimony that the throttle was unsafe particularly due to
    its similarity to a bicycle’s braking mechanism. The District
    Court also prohibited Dr. Warren from offering testimony
    about warnings.
    Although Dr. Warren possessed expertise in relevant
    fields, he failed to apply this expertise to the matter at
    hand. At the time he wrote his expert report, Dr. Warren
    had never operated a jet ski and, by the time of trial, had
    only managed to ride a different model. Moreover, on voir
    dire, Dr. Warren admitted he had never examined diagrams
    of the different throttles used on jet skis. Dr. Warren’s
    asserted knowledge of possible alternatives to the
    accelerating mechanism came from his familiarity with
    outboard motors, which employ a twist grip mechanism,
    and from his recollection of a friend’s motorcycle, which
    used a thumb throttle. Dr. Warren acknowledged he could
    have conducted tests to evaluate the relative merits of
    alternative throttle designs but did not do so. With such a
    paucity of knowledge regarding the specifics of jet ski
    accelerating mechanisms, Dr. Warren was unable to give
    reliable testimony on whether Yamaha improperly employed
    13
    the squeeze finger throttle on its jet ski. Although Dr.
    Warren had sufficient knowledge to describe the throttle
    mechanism in general, the District Court properly
    precluded him from giving further opinions on the matter.
    Similarly, Dr. Warren lacked any specific basis on which
    to opine on the adequacy of Yamaha’s warnings. Moreover,
    in contrast to his background in naval architecture and
    marine engineering, which provided Dr. Warren the
    foundation to testify generally about mechanical issues, he
    possessed no expertise with regard to warning design.
    Thus, the restriction on testimony regarding warnings was
    proper. There was no abuse of discretion.
    III.
    Plaintiffs contend that the District Court erred at the
    close of evidence in granting defendants’ motion for
    judgment as a matter of law on their negligence claims. See
    Fed. R. Civ. P. 50. We exercise plenary review. See, e.g.,
    Shade v. Great Lakes Dredge & Dock Co., 
    154 F.3d 143
    ,
    149 (3d Cir. 1998) (“This court utilizes a plenary standard
    to review a grant . . . of a judgment as a matter of law.”).
    Negligence claims are cognizable in admiralty and may be
    asserted in addition to strict liability claims. E. River S.S.
    Corp. v. Transamerica Delaval, Inc., 
    476 U.S. 858
    , 865-66
    (1986). But the question here is whether plaintiffs’ evidence
    supported these claims. The District Court explained that,
    while the negligence claims were “there in the complaint,”
    they “ha[d] not . . . survived in any real sense” during the
    course of the trial. As such, the District Court held that the
    negligence claims “ha[d] not been made out” and could not
    be submitted to the jury.
    We agree. It is clear that the focus of the trial evidence
    was on plaintiffs’ strict liability claims. Plaintiffs provided
    only cursory theories of Yamaha’s alleged negligence and
    offered scant support to sustain them. The negligence
    claims should not have been submitted to the jury.
    Judgment as a matter of law was proper.
    IV.
    Plaintiffs argue the District Court erred in submitting to
    the jury the possible comparative negligence of Roffe
    14
    and/or Palmas del Mar, neither of which were party to this
    suit. According to plaintiffs, rules of joint and several
    liability should govern, and the possible negligence of non-
    parties cannot be considered. As plaintiffs allege an error of
    law, our review is plenary. See, e.g., Harris v. City of
    Philadelphia, 
    47 F.3d 1342
    , 1349 (3d Cir. 1995).
    Though we think it likely there was no error, given our
    other rulings, any error would be harmless. It was harmless
    because the court’s instruction could not have affected the
    jury’s verdict on the strict liability claim, in that the jury
    decided as a threshold matter, that the jet ski was not
    defective. In instructing the jury, the District Court stated:
    Now, members of the jury, if and only if you decide
    that the Wavejammer was defective in a way that
    proximately caused Natalie’s death, you must then
    consider whether [Roffe and/or Palmas del Mar]
    committed negligent acts that contributed to the
    accident.
    Furthermore, the interrogatories clearly provided that the
    first issue to be considered was whether Yamaha’s jet ski
    was defective. The possible negligence of Roffe and/or
    Palmas del Mar mattered only if Yamaha were liable.
    Because the jury found that the jet ski was not defective, it
    never reached the possible negligence of Roffe and/or
    Palmas del Mar.
    In this respect, the matter here is similar to that
    addressed in Dillinger v. Caterpillar, Inc., 
    959 F.2d 430
     (3d
    Cir. 1992). In Dillinger, plaintiff sued under strict liability
    for injuries he sustained while driving a vehicle
    manufactured by defendant. 
    Id. at 432
    . The district court
    allowed defendant to introduce evidence that plaintiff was
    not wearing a seat belt but only for considering mitigation
    of damages. 
    Id.
     We held that it was error for the district
    court to allow such evidence because “the introduction of
    . . . non-use of the seat belts would be directly at odds with
    the [state] Supreme Court’s dictates barring evidence of a
    plaintiff ’s negligence in [strict] liability proceedings.” 
    Id. at 439
    . But we concluded that such error was harmless
    because the jury had determined that the defendant’s
    product “was either not defective or that the defect was not
    15
    a substantial factor in causing the accident,” and thus the
    jury never reached the issue of seat belt use. 
    Id. at 440
    .
    While plaintiff argued “that the jury was influenced by the
    evidence concerning [his] failure to use the available lap
    belt in determining whether [defendant’s] product was
    defective or whether a defect caused [plaintiff ’s] injuries,”
    the court had to “assume that the jury was competent to
    follow and did follow the instructions given.” 
    Id.
     at 440 n.17.11
    11. As noted, in holding that any possible error was harmless, we do not
    mean to suggest there was in fact error. Although we need not decide,
    the District Court was likely correct in submitting the conditional
    interrogatories on the possible negligence of Roffe and/or Palmas del
    Mar.
    There is joint and several liability in tort suits under admiralty law.
    But admiralty law also adheres to principles of comparative fault. See 1
    Thomas J. Schoenbaum, Admiralty and Maritime Law § 5-4 (3d ed. 2001)
    (explaining that both joint and several liability and comparative fault
    exist in admiralty tort actions and noting that comparative fault still
    applies in cases of strict product liability, “even though this requires a
    comparison of negligence and strict liability”). The intertwining of these
    concepts was addressed by the Supreme Court in McDermott, Inc. v.
    AmClyde, 
    511 U.S. 202
     (1994), which provides instruction for the matter
    at hand.
    In McDermott, the plaintiff settled with certain alleged tortfeasors, and
    another alleged tortfeasor was immune from damages because of
    contractual provisions with the plaintiff. 
    Id. at 204-05
    . In the suit, the
    plaintiff sought damages from yet another alleged tortfeasor, River Don
    Castings, Ltd. (“River Don”). 
    Id.
     The Court held that River Don was only
    responsible for its proportionate share of liability. The Court explained:
    Joint and several liability applies when there has been a judgment
    against multiple defendants. It can result in one defendant’s paying
    more than its apportioned share of liability when the plaintiff ’s
    recovery from other defendants is limited by factors beyond the
    plaintiff ’s control, such as a defendant’s insolvency. When the
    limitations on the plaintiff ’s recovery arise from outside forces, joint
    and several liability makes the other defendants, rather than an
    innocent plaintiff, responsible for the shortfall. [In contrast], the
    proportionate share rule announced in this opinion applies when
    there has been a settlement. In such cases, the plaintiff ’s recovery
    against the settling defendant has been limited not by outside
    forces, but by its own agreement to settle. There is no reason to
    allocate any shortfall to the other defendants, who were not parties
    16
    V.
    For these reasons, we will affirm the judgment of the
    District Court.
    to the settlement. Just as the other defendants are not entitled to a
    reduction in liability when the plaintiff negotiates a generous
    settlement, so they are not required to shoulder disproportionate
    liability when the plaintiff negotiates a meager one.
    
    Id. at 220-21
     (citations and footnotes omitted).
    Although Roffe and Palmas del Mar did not settle with plaintiffs here,
    nor is there immunity resulting from contract, the comparative
    negligence rule announced in McDermott would still apply. Notably, Roffe
    and Palmas del Mar are not parties to this suit because of the voluntary
    acts of the Calhouns. Palmas del Mar was originally a defendant in this
    case but was dismissed by plaintiffs. Roffe was a defendant in
    companion actions brought and dismissed by plaintiffs in Florida and
    Puerto Rico. As such, the Calhouns’ “recovery against [the two] has been
    limited not by outside forces, but by [their own decision].” 
    Id. at 221
    . The
    Supreme Court explained that under such circumstances, defendants
    should only be responsible for their proportionate share of liability. The
    District Court was apparently correct in seeking a determination of the
    relative fault of the relevant entities if the jet ski was determined to be
    defective.
    At least one court has come to a similar conclusion. In Siegler v. Grace
    Offshore Co., 
    663 So. 2d 212
     (La. Ct. App. 1995), the plaintiff sued his
    employer, the employer’s insurer, and a crew boat operator for injuries
    he allegedly sustained while offloading equipment from a drilling vessel.
    
    Id. at 213
    . The plaintiff later voluntarily dismissed his claims against his
    employer and its insurer. 
    Id. at 214
    . As such, the court explained that
    the crew boat operator could only be held responsible for his
    proportionate share. 
    Id. at 215
    . The court stated:
    Although there has not been a settlement per se in this case, the
    plaintiff voluntarily dismissed his claims against [his employer and
    its insurer] with prejudice. For purposes of the proportionate
    allocation of fault, we discern no distinction between a settlement
    and a voluntary dismissal. Both are agreements entered into by the
    plaintiff which serve to limit his recovery as opposed to the outside
    forces such as insolvency or statutory immunity discussed in
    McDermott.
    
    Id.
    17
    A True Copy:
    Teste:
    Clerk of the United States Court of Appeals
    for the Third Circuit