Green v. Schutt Sports Manufacturing Co. ( 2010 )


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  •      Case: 07-10208     Document: 00511053557          Page: 1    Date Filed: 03/16/2010
    IN THE UNITED STATES COURT OF APPEALS
    FOR THE FIFTH CIRCUIT  United States Court of Appeals
    Fifth Circuit
    FILED
    March 16, 2010
    No. 07-10208                    Charles R. Fulbruge III
    Clerk
    JEREMY GREEN,
    Plaintiff–Appellant,
    v.
    SCHUTT       SPORTS MANUFACTURING CO., an Illinois Corporation;
    SCHUTT       DESIGN GROUP, INC., an Illinois Corporation;
    SCHUTT       SPORTS DISTRIBUTION COMPANY, an Illinois Corporation;
    SCHUTT       MANUFACTURING COMPANY, an Illinois Corporation,
    Defendants–Appellees.
    Appeal from the United States District Court
    for the Northern District of Texas
    USDC No. 5:05-CV-164-C
    Before GARZA, STEWART, and OWEN, Circuit Judges.
    PER CURIAM:*
    Jeremy Green appeals the district court’s entry of a take-nothing judgment
    following a jury verdict in favor of defendants Schutt Sports Manufacturing Co.,
    Schutt Design Group, Inc., Schutt Sports Distribution Co., and Schutt
    Manufacturing Co. (collectively, Schutt). Green contends that the district court
    erred in (1) foreclosing his pursuit of a claim for gross negligence, (2) excluding
    *
    Pursuant to 5TH CIR . R. 47.5, the court has determined that this opinion should not
    be published and is not precedent except under the limited circumstances set forth in 5TH CIR .
    R. 47.5.4.
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    testimony of a witness offered as an expert, (3) excluding certain other proffered
    evidence, (4) admitting certain evidence, and (5) instructing the jury. We affirm.
    I
    At the time of his injury, Jeremy Green was a student and football player
    at Levelland High School. During a scrimmage with an opposing team, Green
    tackled a player and suffered a severe burst-fracture of one of his neck vertebra
    that tragically resulted in quadriplegia.
    Green sued Schutt, the manufacturer of the helmet he was wearing at the
    time of his injury, asserting various theories of liability. The district court
    granted summary judgment in favor of Schutt on Green’s claims of
    manufacturing defects, marketing defects, and breach of warranty.                 Green
    abandoned his negligence claim in the joint pre-trial order,1 and the court
    subsequently dismissed Green’s claim for punitive damages based on gross
    negligence. The only liability theory submitted to the jury was whether the
    helmet was defectively designed.
    After an eight-day trial, the jury failed to find a design defect. The district
    court entered judgment for Schutt and denied Green’s motion for a new trial.
    Green has timely appealed, asserting numerous issues.
    II
    Green contends that the district court erred in dismissing his gross
    negligence claim for punitive damages. Green argues in his briefing in this court
    that Texas law “permits gross negligence claims in strict liability cases” and
    similarly that “a party may pursue gross negligence damages in a strict liability
    case.”
    We need not decide whether or under what circumstances recovery for
    punitive damages is available under Texas law when the only cause of action
    1
    See Industrias Magromer Cueros y Pieles S.A. v. La. Bayou Furs Inc., 
    293 F.3d 912
    ,
    919 (5th Cir. 2002) (holding that a joint pre-trial order supersedes all other pleadings).
    2
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    seeking recovery of actual damages is a products liability claim asserting a
    design defect. A Texas statute precludes an award of exemplary damages unless
    actual damages are also awarded.2 The Supreme Court of Texas has explained
    that similarly, under the common law, there could be no recovery of exemplary
    damages unless there was an entitlement to compensatory relief, recognizing
    “the long settled rule that a plaintiff must show himself entitled to compensatory
    relief before punitive damages are recoverable.”3
    In the present case, the jury failed to find a design defect. It therefore
    failed to award any actual damages. Green asserted no other cause of action for
    which actual damages could be awarded. He does not challenge the district
    court’s ruling that he abandoned his claim for negligence. Accordingly, any
    failure to submit whether Schutt was grossly negligent and whether exemplary
    damages should be awarded was harmless because there is no basis for the
    predicate award of actual damages.
    III
    At trial Green sought to call as a witness Thomas “Hollywood” Henderson,
    a former National Football League linebacker. The district court concluded that
    Henderson was not qualified as an expert to opine on helmet safety and design.
    Green contends on appeal that this ruling was in error because Schutt’s defense
    had two main components: that no helmet could be designed to prevent neck and
    spine injuries, as distinguished from head injuries, and the cause of Green’s
    catastrophic injury was the manner in which he executed the tackle, with his
    head bent or down rather than up.                  Green contends that Henderson was
    qualified to testify about “the value of football helmets,” that his testimony
    would be “in many ways more valuable than that provided by any ‘technical
    2
    T EX . CIV . PRAC . & REM . CODE ANN . § 41.004(a) (“[E]xemplary damages may be
    awarded only if damages other than nominal damages are awarded.”).
    3
    Travelers Indem. Co. of Ill. v. Fuller, 
    892 S.W.2d 848
    , 852 (Tex. 1995).
    3
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    expert,’” and that “this witness had the appropriate knowledge, skill and
    expertise to guide this jury in resolving the question whether plaintiff’s
    technique was the cause of his injury.”
    The district court did not abuse its discretion in excluding Henderson’s
    testimony as an expert regarding “the value of football helmets.” There is no
    evidence in this record of the witness’s expertise in this area.
    With regard to whether Green’s injury was caused by his tackling
    technique, he has not explained on appeal, in even general terms, what
    Henderson’s testimony would have been and how it may have assisted the jury.
    We therefore have no basis for concluding that any error in excluding Henderson
    as a witness was harmful.
    IV
    The district court denied various motions in limine that Green filed, and
    Green contends that these rulings require reversal and a new trial. We review
    the district court’s evidentiary rulings for abuse of discretion.4 “A trial court
    abuses its discretion when its ruling is based on an erroneous view of the law or
    a clearly erroneous assessment of the evidence.” 5                 If we find an abuse of
    discretion in an evidentiary ruling, we review for harmless error and upset the
    judgment below only if the evidentiary ruling affected the substantial rights of
    the complaining party.6 Evidentiary rulings are harmless if, in the context of the
    entire record, they have no effect or “very slight effect” on the jury’s verdict.7
    4
    United States v. Ragsdale, 
    426 F.3d 765
    , 774 (5th Cir. 2005).
    5
    
    Id. (quoting Bocanegra
    v. Vicmar Servs., Inc., 
    320 F.3d 581
    , 584 (5th Cir. 2003)).
    6
    
    Id. at 774-75
    (quoting 
    Bocanegra, 320 F.3d at 584
    ).
    7
    Haun v. Ideal Indus., Inc., 
    81 F.3d 541
    , 547 (5th Cir. 1996) (quoting Pregeant v. Pan
    Am. World Airways, Inc., 
    762 F.2d 1245
    , 1249 (5th Cir. 1985)) (internal quotation marks
    omitted).
    4
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    A
    Green asserts that the district court erred by denying six motions in limine
    that he filed to exclude any arguments and evidence relating to “comparative
    fault, assumption of the risk, competitive sports doctrine, and related negligence
    defenses.” Green does not challenge any specific evidence that was admitted at
    trial, nor does he cite any part of the trial transcript as an example of evidence
    that was admitted over the objections he asserted in his motions in limine.
    Even assuming, without deciding, that Green has sufficiently apprised this
    court of the evidence he challenges, we cannot conclude that the district court
    abused its discretion. Under Texas law, comparative responsibility expressly
    applies to defective design tort claims.8 Under Texas’s statutory scheme, a
    plaintiff’s recovery in tort is reduced by the proportion he contributed to causing
    his own harm through actions that were negligent or otherwise fell below some
    legal standard.9 (If the plaintiff’s responsibility exceeded fifty percent, recovery
    is barred completely. 10 )           But consumers have no duty to discover or guard
    against product defects, so a plaintiff’s failure to discover or failure to guard
    against a product defect cannot reduce the amount of damages received by the
    plaintiff.11
    The record reflects that Schutt’s arguments regarding Green’s role in the
    causation of his injury were limited to contentions that Green tackled improperly
    by lowering his head and making first contact with his helmet and that no
    helmet could provide protection to the neck under such circumstances. The line
    8
    T   EX .   CIV . PRAC . & REM . CODE ANN . § 33.003.
    9
    Gen. Motors Corp. v. Sanchez, 
    997 S.W.2d 584
    , 593 (Tex. 1999) (citing TEX . CIV . PRAC .
    & REM . CODE ANN . §§ 33.011(4), 33.012(a)).
    10
    T    EX .   CIV . PRAC . & REM . CODE ANN . § 33.001.
    11
    
    Sanchez, 997 S.W.2d at 594
    .
    5
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    between permissible and impermissible evidence is thin, if not blurred, when, in
    a case such as this, it is permissible to offer evidence pertinent to comparative
    responsibility but impermissible to offer evidence that the plaintiff failed to
    guard against a product’s limitations. However, we cannot say that the district
    court erred in denying Green’s motion in limine pertaining to comparative
    responsibility.
    The assumption of the risk as a defense to negligence claims under Texas
    law has been abrogated and replaced by the comparative responsibility regime
    described above.12 But as discussed above, the evidence offered at trial that
    might arguably have suggested that Schutt assumed the risks inherent in
    playing football was relevant with regard to the design defect claim and the
    producing cause of Schutt’s injury. The jury was not instructed that assumption
    of the risk is a defense, or even relevant, to Green’s claims.
    Some Texas appellate courts have discussed the “competitive sports
    doctrine.” 13 Under this doctrine, participants in competitive contact sports may
    recover damages from injuries caused by other participants only if that other
    participant intentionally or recklessly—not merely negligently—caused the
    injury.14     But nonparticipants such as sponsors or those who maintain
    equipment or facilities do not share in this reduced scope of potential liability.15
    The competitive sports doctrine therefore was not a defense available to Schutt
    in this case. Although there were references to the dangerous nature of football
    12
    Jackson v. Axelrad, 
    221 S.W.3d 650
    , 654 (Tex. 2007) (citing Farley ex rel. Ballman
    v. M M Cattle Co., 
    529 S.W.2d 751
    , 758 (Tex. 1975)).
    13
    E.g., Moore v. Phi Delta Theta Co., 
    976 S.W.2d 738
    , 741 (Tex. App.–Houston [1st
    Dist.] 1998, pet. denied); Hathaway v. Tascosa Country Club, Inc., 
    846 S.W.2d 614
    , 616-17
    (Tex. App.–Amarillo 1993, no writ); Connell v. Payne, 
    814 S.W.2d 486
    , 488-89 (Tex.
    App.–Dallas 1991, writ denied).
    14
    
    Moore, 976 S.W.2d at 741
          15
    
    Id. at 742
    (citing 
    Connell, 814 S.W.2d at 488
    ).
    6
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    in the presence of the jury, including in the closing argument, there was no
    discussion of the competitive sports doctrine in the presence of the jury and no
    suggestion in the jury instructions that Schutt could only be liable for
    intentional or reckless action.
    B
    Green contends that the district court erred by permitting Schutt to
    introduce evidence that Schutt complied with industry standards set by the
    National Operating Committee on Standards for Athletic Equipment (NOCSAE)
    and that NOCSAE is of the view that no football helmet is capable of protecting
    against neck injuries. This evidence was inadmissible, Green asserts, because
    compliance with industry custom is not a defense to a products liability design
    defect claim based on the Texas Supreme Court’s decision in Boatland of
    Houston, Inc. v. Bailey 16 and this court’s decision in Carter v. Massey-Ferguson,
    Inc.17
    Green’s arguments fail for two reasons. First, Richard Stalnacker, Green’s
    own expert, relied upon NOCSAE’s testing standards in his expert report and
    as reference material when he tested helmets to determine if an alternate design
    was feasible. At trial, Green elicited several statements from Stalnacker about
    NOCSAE’s history and mission, and about NOCSAE’s testing standards. Green
    may not complain about Schutt’s citation to NOCSAE standards when
    Stalnacker also cited and relied upon those standards.
    Second, Boatland of Houston does not categorically preclude evidence of
    industry standards in product liability cases. Instead, it holds: (a) since a
    manufacturer’s level of care is irrelevant in a products liability action, evidence
    that the manufacturer complied with industry standards is also irrelevant if it
    16
    
    609 S.W.2d 743
    (Tex. 1980).
    17
    
    716 F.2d 344
    , 349 (5th Cir. 1983).
    7
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    is introduced for the purpose of showing that the manufacturer took reasonable
    care in the design of its product; but (b) evidence of industry standards is
    relevant if offered to rebut the plaintiff’s attempt to prove that a safer design
    was technologically possible and economically feasible.18 The record reflects that
    Schutt’s use of NOCSAE standards falls into the latter category. Schutt relied
    upon NOCSAE’s standards to rebut Green’s attempt to prove that a safer
    alternative design was feasible. Evidence that NOCSAE has concluded that no
    feasible football helmet can protect players’ necks is relevant to the alternative
    design element of a design defect case.
    Green argues that testimony that the Schutt DNA helmet “complied” with
    NOCSAE standards confused the jury by suggesting that the helmet’s head and
    brain protection were relevant to the helmet’s ability to protect the neck. But
    the record does not support this contention. The transcript pages Green cites
    are: (a) testimony from Robert Cantu, a neurosurgeon and vice president of
    NOCSAE, that no NOCSAE-approved helmets (which include all helmets in use
    in high school football) would have offered any greater protection against this
    injury than the Schutt DNA helmet did; (b) testimony from Peter Halstead, a
    biomechanical research scientist and technical advisor to NOCSAE, that all
    football governing bodies in America (such as the NCAA, the NFL, and the
    National Federation of State High Schools) require that helmets used in their
    games comply with NOCSAE standards, and that NOCSAE had studied the
    feasibility of helmet designs that could protect the neck and found that all
    alternative designs were not feasible; and (c) testimony by Kenneth Nimmons,
    executive vice president of Schutt, that Schutt helmets comply with NOCSAE
    standards. None of this testimony was likely to confuse the jury about the issues
    18
    See Boatland of Houston, 
    Inc., 609 S.W.2d at 748-49
    ; see also 
    Carter, 716 F.2d at 348
    (holding that “evidence of industry custom is relevant to the ordinary user’s expectations” and
    relevant to the risk–utility determination in Texas design defect claims).
    8
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    in the case.       Further, Green was able to cross-examine the witnesses on
    NOCSAE’s current and historical statements on neck protection. When cross-
    examining defense witness Halstead, Green suggested Halstead was “tell[ing]
    this jury [that if] this helmet meets NOCSAE, it’s perfectly safe”; Halstead
    disagreed: “No, sir, I wouldn’t [say that]. . . . I would tell you that the NOCSAE
    standard does not have provisions for testing the helmet’s ability to protect the
    neck.”     Thus even if there had been initial confusion from the mention of
    compliance with NOCSAE standards, Green’s cross-examination allowed him to
    clarify the issues and his theory of the case.
    Green also argues that the probative value of the evidence on the
    NOCSAE standards was “substantially outweighed by the danger of unfair
    prejudice, confusion of the issues, or misleading the jury, or by considerations of
    undue delay, waste of time, or needless presentation of cumulative evidence,”
    citing Federal Rule of Evidence 403. But Green does not offer any explanation
    for this argument—there are no citations to case law or the record—and the
    record does not support it.
    C
    Green asserts that the district court erred by denying his motion in limine
    seeking to exclude certain types of statistical evidence. Green cites Rodriguez
    v. Crown Equipment Corp.19 for the principle that we require “a showing of
    substantial similarity before admitting evidence of other incidents” and that
    without such a showing, “other incident testimony simply fails to meet the test
    of relevancy.” Green argues that defense witness Robert Cantu referred to
    statistical data without first establishing that the sources for the data were
    substantially similar to the facts of Green’s case.
    19
    
    923 F.2d 416
    , 418 (5th Cir. 1991).
    9
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    The statistical data Cantu mentioned on the transcript pages Green cites
    include: (a) a survey of every catastrophic head and neck injury occurring in
    football in the United States each year, and (b) a 1997 NOCSAE report of
    catastrophic neck injuries in football occurring from 1977 through 1989 showing
    that over 70% of such injuries happened when the tackler’s head was down.
    Green argues that there was no evidence about the type of helmet, nature of the
    play, or type of injury involved in these other incidents, so there was nothing to
    establish the reports’ relevance to Green’s injury.
    Substantial similarity does not require an exact match. Similar to the
    situation in Jackson v. Firestone Tire & Rubber Co.,20 on which the Rodriguez
    court relied, a court would impose an overly “narrow and unrealistic” view of
    relevance 21 if it prevented Schutt from introducing any evidence of football
    injuries except those in which the football helmet, nature of the play, and type
    of injury were identical to those in Green’s injury. The data in the reports was
    relevant to Schutt’s defense that the method of tackling, rather than the design
    of the helmet, was the cause of Green’s injury. And the data pool is substantially
    similar to Green’s injury in that it involves the same sport played under the
    same or similar rules with similar equipment, resulting in the same rare
    injuries. These similarities are substantial enough to make the data relevant
    to Schutt’s defense. The district court did not abuse its discretion by allowing
    this data.
    D
    Green asserts that the district court erred by allowing Schutt to elicit
    testimony on cross-examination of Brad Thiessen, Green’s football coach, that
    the high school continued to use the Schutt DNA helmet after Green’s injury.
    20
    
    788 F.2d 1070
    (5th Cir. 1986).
    21
    
    Id. at 1082-83.
    10
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    Green asserts that this statement was used “to prove non-defect” and that it was
    irrelevant, improper opinion testimony, and highly prejudicial, and therefore
    should have been excluded under Federal Rules of Evidence 401, 402, 403, 701,
    and 702.
    Any error was harmless. The testimony at issue was a single question
    (“You’re still using this helmet today. Correct?”) and answer (“Yes.”) that took
    place in the eight day trial. Schutt never referred to the question again, and
    never argued that the school’s continued use of the helmet implied anything
    about whether it was defective.     The primary sources of evidence for both
    Green’s and Schutt’s theories of the helmet’s design defect vel non were experts
    who testified about the mechanics of compressive neck injuries and of helmet
    design.
    E
    Schutt’s expert witnesses Joseph Torg, Robert Cantu, Peter Halstead, and
    James McElhaney testified that Green’s tackling technique contributed to his
    injury and that football helmets cannot protect the neck. Green contends these
    opinions were not based upon scientific principles and methods, and were
    unreliable, cumulative, and irrelevant. These witnesses—three medical doctors
    and one biomechanical engineer—testified as to the physical effects and
    biomechanics of the manner in which Green executed the tackle and their
    opinions regarding design of a helmet to prevent injury in these circumstances.
    Each had extensive experience studying neck injuries sustained by football
    players. Their expert knowledge was sufficiently established to permit such
    testimony.
    F
    The district court declined to exclude a bar graph offered at trial by Schutt
    that compared its in-house test scores of its DNA model helmet and the Air
    Power helmet, which Green contended was an alternative and safer helmet.
    11
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    Green acknowledges that the graph was produced 30 days before trial during the
    exchange of trial exhibits. Green contends, however, that Schutt refused to
    produce the underlying data and had refused to produce any testing records for
    the Air Power helmet during discovery.
    Schutt countered in the district court that Green’s expert had charted
    testing of the Air Power helmet in other cases. Schutt additionally argues on
    appeal that Green was required, and failed, to object within 14 days after
    receiving this trial exhibit, pursuant to Rule 26(a)(3)(C) of the Federal Rules of
    Civil Procedure.
    We review the district court’s ruling for an abuse of discretion. Based on
    the record before us and the conflicting evidence of prejudice, we cannot say that
    the district court abused its discretion.
    G
    The district court overruled Green’s objection to evidence that both
    NOCSAE and the National Football Federation 22 (NFHS or Federation) have
    stated in published literature that football helmets cannot protect against neck
    injuries.
    Green cites no transcript pages for these alleged evidentiary errors. In its
    appellate brief, Schutt cites a portion of the direct examination testimony of
    Artemio Ontiveros, an assistant coach of Green’s football team. Schutt referred
    to and subsequently admitted the NFHS rulebook that governed the scrimmage
    game. Green objected on the basis of relevance (with no further detail) and was
    overruled. However, Green now contends on appeal that the NOCSAE and
    NFHS evidence had no scientific basis and was hearsay. Green’s objection based
    on relevance did not preserve these contentions for appeal.
    22
    The parties and witnesses occasionally referred to this entity by slightly different
    names. The correct name and acronym for this organization appears to be the National
    Federation of State High School Associations (NFHS). See http://nfhs.org.
    12
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    V
    Green challenges several rulings of the district court excluding evidence
    he offered.
    A
    The district court excluded a 1973 version of NOCSAE’s standards.
    According to the document’s preamble, NOCSAE sought to develop a football-
    helmet-test standard that would “improve upon the protection afforded by
    helmets to prevent both head and neck injuries.” Schutt moved the district court
    to exclude this evidence under Federal Rule of Evidence 403, arguing that it was
    likely to confuse the jury since the language at issue provides only an aspiration
    and is not a scientific finding.          Schutt further contended that more recent
    literature, as well as NOCSAE’s current standard, rejects this aspiration. The
    district court granted Schutt’s motion. Given the document’s aspirational tone
    and age, the more recent medical literature, and NOCSAE’s change in position,
    the district court did not abuse its discretion.
    B
    The district court excluded a design safety memorandum that had been
    prepared for Bike Athletic Company in 1985. The document contains a list of 14
    broad guidelines for designing safe athletic equipment, such as “exceed all
    standards” and “consider safety throughout the design.” Although the document
    was not prepared for Schutt, Schutt’s director of research for the DNA helmet
    was an employee at Bike Athletic Company in 1985 and received the
    memorandum there. Green argued that the document put this person on notice
    of certain safety requirements for helmet design. Schutt contended that the
    document was irrelevant and moved the court to exclude it under Rule 402. The
    district court granted Schutt’s motion. “In cases involving strict liability for
    defective     design,   liability   is    determined    by   the   product’s   defective
    13
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    condition . . . .” 23     Green’s cause of action was based on strict liability for
    defective design. Although the document at issue may have shown “notice” to
    Schutt of foreseeable risks, as Green argues, it does not tend to establish that a
    defect existed. The district court did not abuse its discretion.
    C
    Green also claims that the district court erred in preventing him from
    admitting a nine-page published paper on helmet safety. The article, which was
    published in a scientific journal in 1978, explains the methodology and results
    of a helmet-safety test. It concludes that helmets can reduce the compressive
    force to the cervical spine, and that air-filled helmets provide better neck
    protection than padded helmets. Green’s expert described the paper in great
    detail. He explained how the helmet-safety test was conducted and conveyed the
    paper’s conclusions. He also quoted directly from the article. When Green
    attempted to admit the paper into evidence, Schutt objected that the article was
    irrelevant because it was nearly 30 years old, and that it was hearsay. The
    judge sustained these objections. Even if the district court erred in excluding the
    article, which we do not resolve, the error did not harm Green. Green’s expert
    testified extensively about the article and conveyed to the jury all helpful and
    relevant information contained in it.
    D
    Green received medical bills totaling $831,254.74, but Medicaid and other
    insurance providers settled the bills for $448,154.63. The district court ruled
    before trial that Green could only seek recovery for the $448,154.63 that was
    actually paid. The district court prevented Green from presenting evidence on
    the remainder of the amount initially billed. Green claims that this was error.
    Green’s complaint relates only to damages; because the jury failed to find in
    23
    Boatland of Houston, Inc. v. Bailey, 
    609 S.W.2d 743
    , 749 (Tex. 1980).
    14
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    Green’s favor on any theory of liability, and we are not disturbing any of the
    liability determinations, we do not consider this contention.
    E
    In one sentence, Green asserts that the district court erred in denying his
    motion to strike a brief that Schutt filed prior to trial. Green has waived this
    argument by inadequately briefing it.24             But even if Green had adequately
    briefed this argument, permitting the filing of this pretrial brief did not
    prejudice Green.
    VI
    Green challenges the charge and instructions to the jury. He must show
    that the “charge as a whole creates substantial and ineradicable doubt whether
    the jury has been properly guided in its deliberations.” 25 If the instructions
    contained an error, we still will not reverse if the record, taken as a whole,
    reflects that the instruction could not have changed the case’s outcome.26
    A
    On appeal, Green contends that the district court “improperly commingled
    negligence principles with strict liability design defect principles” and “adopted
    more stringent standards than those required for strict liability claims under
    Texas law.” Green’s brief contains nothing more than these two statements. He
    cites no authorities, nor does he discuss the charge. Green has waived any
    argument by failing to brief it adequately.
    He additionally contends that it was error to submit comparative fault to
    the jury and to refuse to instruct the jury that Green had no duty to discover the
    24
    See FED . R. APP . P. 28(a).
    25
    See Pelt v. U.S. Bank Trust Nat’l Ass’n, 
    359 F.3d 764
    , 766-67 (5th Cir. 2004) (quoting
    Johnson v. Sawyer, 
    120 F.3d 1307
    , 1315 (5th Cir. 1997) (internal quotation marks omitted)).
    26
    
    Id. 15 Case:
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    No. 07-10208
    defective condition of the helmet. Here again, Green cites to no authorities other
    than the Texas Pattern Jury Charge. This is insufficient.
    B
    Schutt initially intended to contend at trial that Green assumed the risk
    of his injury. Green argues that the court erred in allowing Schutt to introduce
    evidence related to this defense and then failing to instruct the jury not to
    consider this evidence after Schutt abandoned its defense during the charge
    conference. Green cites no case law or other authorities, and this point has not
    been adequately presented.
    *        *         *
    For the foregoing reasons, we AFFIRM the judgment of the district court.
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