David Block v. Kimberly Mora ( 2009 )


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  •                                     NO. 07-08-0092-CV
    IN THE COURT OF APPEALS
    FOR THE SEVENTH DISTRICT OF TEXAS
    AT AMARILLO
    PANEL C
    JANUARY 7, 2009
    ______________________________
    DAVID BLOCK, APPELLANT
    V.
    KIMBERLY MORA, APPELLEE
    _________________________________
    FROM THE 242ND DISTRICT COURT OF HALE COUNTY;
    NO. B33,999-0504; HONORABLE ED SELF, JUDGE
    _______________________________
    Before QUINN, C.J., and HANCOCK and PIRTLE, JJ.
    OPINION
    Appellant, David Block, appeals from a judgment rendered in favor of Appellee,
    Kimberly Mora, following a jury trial of his personal injury cause of action arising out of a
    collision between the vehicle being driven by Mora and Block’s pickup truck. Block
    presents five points of error, restated in three issues: (1) Was the evidence legally and
    factually sufficient to support the jury’s verdict?; (2) Did the trial court erroneously charge
    the jury on comparative fault?; and (3) Did Block conclusively establish Mora’s negligence
    and his damages? Finding error in the submission of the court’s charge, we reverse and
    remand.
    Factual Background
    Block’s petition alleged he was driving westbound on Olton Road near an
    intersection with Wal-Mart’s parking lot in Plainview, Texas, when Mora’s vehicle collided
    with his pickup truck after she exited the parking lot onto Olton Road. In response, Mora
    filed a general denial and asserted two affirmative defenses – contributory negligence and,
    alternatively, unavoidable accident.
    Block’s claim was tried in a two day, jury trial. The testimony at trial indicated that,
    before leaving his house for work the day of the accident, Block placed a spare tire atop
    four, five gallon buckets of hydraulic oil in the bed of his pickup truck. He did not secure
    the tire. Later that day, while returning home from work via Olton Road, Block was driving
    approximately forty-five miles per hour. As he approached the intersection of Olton Road
    and the Wal-Mart parking lot, Mora pulled her vehicle in front of him, causing her vehicle
    to collide with the front end of his pickup truck. On impact, the spare tire flew forward,
    knocking out the pickup truck’s rear window and striking Block in the back of the neck and
    shoulder while pushing him against the steering wheel. Block, his wife, and an expert
    damages witness testified as to the nature and extent of his injuries.
    2
    Mora testified that, when the accident occurred, she was driving her mother’s vehicle
    without permission and had not obtained a driver’s license. She admitted that the accident
    was her fault.1 After Block rested his case-in-chief, Mora put on a single witness to rebut
    Block’s damages evidence and rested.
    At the jury charge conference, the trial court proposed submission of the Texas
    Pattern Jury Charges2 standard broad form, joint submission of negligence and proximate
    cause3 as Question No. 1, and proportionate responsibility4 as Question No. 2.
    1
    Mora’s counsel conceded in voir dire, opening argum ent, and a sidebar conference with the trial court
    that Mora was an inexperienced, unlicensed driver who had a duty to yield the right of way at the intersection
    and failed to do so before she collided with Block. He further represented to the trial court that she did not
    dispute liability.
    2
    Texas Pattern Jury Charges (2008). References herein to the PJC are references to the 2008
    Edition of Texas Pattern Jury Charges.
    3
    PJC 4.1 Broad Form-Joint Subm ission of Negligence and Proximate Cause
    QUESTION _____
    Did the negligence, if any, of those nam ed below proxim ately cause the [occurrence] [injury]
    [occurrence or injury] in question?
    Answer “Yes” or “No” for each of the following:
    a.        Don Davis       ____________________
    b.        Paul Payne      ____________________
    4
    PJC 4.3 Proportionate Responsibility
    If you answered “Yes” to Question[s] __[applicable liability question(s)] for m ore than one of
    those nam ed below, then answer the following question. Otherwise, do not answer the
    following question.
    Assign percentages of responsibility only to those you found caused or contributed to cause
    the [occurrence] [Injury] [occurrence or injury]. The percentages you find m ust total 100
    percent. The percentages m ust be expressed in whole num bers. The percentage of
    responsibility attributable to any one is not necessarily m easured by the num ber of acts or
    om issions found. The percentage attributable to any one need not be the sam e attributed
    3
    Furthermore, the trial court proposed the use of the term injury in both questions. Block’s
    counsel objected to the submission of the two questions, asserting that Mora had admitted
    fault and there was no evidence that he was contributorily negligent in causing the
    accident. In lieu thereof, Block proposed an instruction that stated: “Kimberly Mora has
    admitted that her negligence proximately caused the occurrence in question.” Alternatively,
    Block requested that the term occurrence be substituted for the term injury in Question No.
    1.
    The trial court overruled his objections, denied the alternative instruction, and
    charged the jury, in pertinent part, as follows:
    JURY QUESTION NO. 1
    Did the negligence, if any, of those named below proximately cause the
    injuries, if any, to David Block?
    Answer “Yes” or “No” for each of the following:
    a. Kimberly Mora                        _____________
    b. David Block                          _____________
    to that one in answering another question.
    QUESTION _____
    For each person you found caused or contributed to cause the [occurrence] [Injury]
    [occurrence or injury], find the percentage of responsibility attributable to each:
    a.      Don Davis       _______________%
    b.      Paul Payne      _______________%
    Total                  100           %
    4
    Because, in answering Question No. 1, the jury answered “no” to subpart “a” and
    “yes” to subpart “b,”5 the jury was not required to answer Question No. 2. When asked in
    Question No. 3, “[w]hat sum of money, if paid in cash, would fairly and reasonably
    compensate David Block for his injuries, if any, that resulted from the collision,” the jury
    awarded no damages. Thereafter, the trial court entered a judgment that Block take
    nothing by his suit and awarded costs to Mora. In Block’s subsequent motion for judgment
    notwithstanding the verdict, he re-urged his objections made during the jury charge
    conference. The trial court denied his motion and this appeal followed.
    Discussion
    Block asserts that the evidence at trial supported judgment in his favor because
    Mora’s negligence was established as a matter of law, and there was no evidence
    indicating he was contributory negligent and/or proximately caused the accident or his
    injuries. As such, he asserts the trial court erred in giving comparative fault instructions to
    the jury and/or denying his motion for judgment notwithstanding the verdict.                           Block
    preserved his legal sufficiency issues for appeal by timely objecting to the submission of
    the comparative fault instructions and filing his motion for judgment JNOV. See Dunnagan
    v. Watson, 
    204 S.W.3d 30
    , 45 (Tex.App.–Fort Worth 2006, pet. denied).
    5
    The charge form returned to the trial court by the jury indicates they first answered subpart “b” by
    writing “100%,” then m arked through the answer and wrote “yes.”
    5
    I.     Jury Charge Error
    We will first address Block’s contentions pertaining to jury charge error because that
    issue is potentially dispositive of the appeal. See Tex. R. App. P. 47.1.
    A.     Standard of Review
    The standard of review applicable to a complaint pertaining to an alleged error in
    submission of the court’s charge to the jury depends upon the particular aspect of the
    charge about which the complaint is being made. See W. Wendell Hall, Standards of
    Review in Texas, 38 St. Mary’s L. J. 195-200 (2006). In this case, Block is contending that
    the evidence was not legally sufficient to support the trial court’s decision to submit
    comparative negligence to the jury. Alternatively, he contends that the trial court erred in
    submitting the comparative negligence question using the term injuries, when it should
    have submitted the question using the term occurrence. Because the determination of
    whether or not a legal duty exists under a given set of facts to warrant the submission of
    a comparative negligence question is essentially a question of law, it is reviewable de novo.
    See Murray v. Murray, No. 02-08-031-CV, 
    2008 WL 5265048
    , at *2 (Tex.App.–Fort Worth,
    Dec. 18, 2008, no pet. h.); Webb v. City of Lubbock, 
    380 S.W.2d 135
    , 136
    (Tex.Civ.App.–Amarillo 1964, writ ref’d n.r.e.).
    When conducting a de novo review, an appellate court exercises its own judgment
    and redetermines each issue of fact and law. Quick v. City of Austin, 
    7 S.W.3d 109
    (Tex.
    6
    1998). In such a review, the appellate court accords the trial court no deference. See
    State v. Heal, 
    917 S.W.2d 6
    , 9 (Tex. 1996). Accordingly, the issue is, given the facts and
    circumstances of this case, was the evidence sufficient to support the submission of a
    comparative negligence question to the jury?
    B.       Broad Form Submission
    Rule 277 of the Texas Rules of Civil Procedure requires a trial court, whenever
    feasible, to submit a claim or cause of action upon broad form questions. Furthermore, the
    court is required to submit such instructions and definitions as are necessary and proper
    to enable the jury to render a verdict based upon the appropriate law and the evidence
    presented. See Tex. R. Civ. P. 277, 278.
    C.       Comparative Fault
    Because comparative responsibility involves measuring the parties’ comparative
    fault in causing plaintiff’s injuries, it necessitates a preliminary finding that the plaintiff was
    in fact contributorily negligent.6 Kroger Co. v. Keng, 
    23 S.W.3d 347
    , 351 (Tex. 2000). See
    6
    Evidence that a plaintiff failed to m itigate his dam ages m ay warrant a m itigation of dam ages
    instruction as opposed to a com parative negligence quesiton. See Elbaor v. Smith, 845 S.W .2d 240, 245
    (Tex. 1992) (a plaintiff’s failure to follow doctor’s orders post-accident entitles defendant to m itigation
    instruction); Moulton v. Alamo Ambulance Serv., Inc., 414 S.W .2d 444, 448-49 (Tex. 1967) (m itigation
    instruction proper where plaintiff’s failure to follow com petent m edical advice aggravated or enhanced the
    injuries he sustained in a collision); Young v. Thota, M.D., ___ S.W .3d ___, N o. 02-05-350-CV, 2008 W L
    4938314, at *4-5 (Tex.App.–Fort W orth Nov. 20, 2008, no pet. h.) (m itigation instruction proper if patient failed
    to follow post-adm ission instructions). W hile m itigation arises from the injured party’s separate duty to act
    reasonably in reducing his dam ages after they are incurred, contributory negligence asks whether the plaintiff
    was the proxim ate cause of the original incident upon which suit was filed. Hygeia Dairy Co. v. Gonzalez, 994
    S.W .2d 220, 226 (Tex.App.–San Antonio 1999, no pet.). Mora did not plead or assert a m itigation defense.
    7
    Moore v. Kitsmiller, 
    201 S.W.3d 147
    , 151 (Tex.App.–Tyler 2006, no pet.); Howard v.
    Bachman, 
    524 S.W.2d 414
    , 416 (Tex.Civ.App.–Eastland 1975, no writ). Contributory
    negligence contemplates an injured person’s failure to use ordinary care in regard to his
    or her own safety, Parker v. Highland Park, Inc., 
    565 S.W.2d 512
    , 520 (Tex. 1978), and
    requires proof that the plaintiff was negligent and that the negligence was the proximate
    cause of his or her injuries. See Brown v. Edwards Transfer Co., 
    764 S.W.2d 220
    , 223
    (Tex. 1988). The standards and tests for determining contributory negligence are the same
    as those for determining negligence and the rules of law applicable to the former are
    applicable to the latter. 
    Moore, 201 S.W.3d at 151
    .
    Submission to the jury of a comparative fault question is not allowed “without
    sufficient evidence to support the submission.” See Tex. Civ. Prac. & Rem. Code Ann. §
    33.003(b) (Vernon 2006). As discussed in footnote one, there is no question that the
    evidence was sufficient to support the submission of Mora’s negligence. The question is,
    was there sufficient evidence to support the submission of Block’s negligence? To
    determine whether legally sufficient evidence supported the submission of Block’s
    negligence to the jury in a comparative fault question, we must first examine the record for
    evidence supporting his negligence and ignore all evidence to the contrary. See Elbaor
    v. Smith, 
    845 S.W.2d 240
    , 243 (Tex. 1992).
    8
    Block’s Negligence and Proximate Cause
    Mora contends Block was negligent in placing his spare tire atop the hydraulic oil
    cans in the bed of his pickup truck and that such negligence proximately caused his injuries
    when the spare tire struck him during the collision. In support, she cites Block’s testimony
    that he failed to secure the tire on the truck bed when he left home for work the day of the
    accident. As a result, she contends that, while Block may not have caused the collision,
    he was contributorily negligent in causing his injuries. At trial, the defendant bears the
    burden of proving that the plaintiff was contributorily negligent by a preponderance of the
    evidence. McDonald v. Dankworth, 
    212 S.W.3d 336
    , 340 (Tex.App.–Austin 2006, no pet.).
    Mora failed to meet that burden by failing to establish that, by placing the unsecured
    spare tire in the back of his truck, Block committed an intrinsically harmful act or breached
    a legal duty to Mora or to the public at large. See 
    Elbaor, 845 S.W.2d at 245
    . Block’s
    omission cannot constitute contributory negligence in the absence of a breach of some
    legal duty. See Kroger Co. v. Elwood, 
    197 S.W.3d 793
    , 794 (Tex.2006); May v. Barton’s
    Pump Service, Inc., 
    153 S.W.3d 469
    , 476 (Tex.App.–Amarillo 2004, no pet.). Furthermore,
    there was no evidence that Block was cited for any traffic violation due to the collision,7 nor
    7
    That Block was not cited com ports with Texas traffic law which regulates only the transportation of
    “loose m aterial” defined as follows:
    Material that can be blown or spilled from a vehicle because of m ovem ent or exposure to air,
    wind currents, or other weather. The term includes dirt, sand, gravel, refuse, and wood chips
    but excludes agricultural product in its natural state.
    Tex. Transp. Code Ann. §§ 725.001, 725.021 (Vernon Supp. 2008).
    9
    did Mora cite any traffic law violated by Block. The uncontroverted testimony at trial
    indicated Block had driven his pickup truck with the fifteen pound spare tire in its bed to
    and from work at forty-five miles per hour without incident until Mora collided with his
    pickup truck. Under these circumstances, it cannot be said that Block engaged in a
    negligent act by placing the spare tire in the bed of his pickup truck.
    Furthermore, proximate cause is comprised of two elements – cause in fact and
    foreseeability. Leitch v. Hornsby, 
    935 S.W.2d 114
    , 118-19 (Tex. 1996); City of Gladewater
    v. Pike, 
    727 S.W.2d 514
    , 517 (Tex. 1987). A “negligent act or omission is not a cause in
    fact unless ‘but for the conduct the accident would not have happened.’” Williams v.
    Steves Indus., Inc., 
    699 S.W.2d 570
    , 575 (Tex. 1985) (quoting Kerby v. Abilene Christian
    College, 
    503 S.W.2d 526
    , 528 (Tex. 1973)). If the accident would have occurred even if
    the injured party had taken the required precautions, his failure to do so cannot be a
    substantial factor in bringing about the accident. RESTATEMENT (SECOND) OF TORTS
    § 432(1) cmt. b (1965). Cause in fact is established when the act or omission was a
    substantial factor in bringing about the occurrence, and without it, the event would not have
    occurred. See IHS Cedars Treatment Center of DeSoto, Texas, Inc. v. Mason, 
    143 S.W.3d 794
    , 799 (Tex. 2003).
    Block’s failure to secure the spare tire did not cause the vehicular collision; nor did
    it cause the spare tire to suddenly fly forward and crash into the cab of his pickup truck.
    The unsecured spare tire merely provided a scenario in which Block’s injuries were
    10
    potentially enhanced or increased. Mora failed to produce any evidence that but for
    Block’s conduct the accident would not have happened. Having failed to establish that
    Block’s conduct was a cause in fact, Mora failed to establish proximate cause.
    Here, regardless of whether Block secured the spare tire, the accident would have
    occurred. Having failed to preliminarily establish that Block was contributorily negligent in
    causing the accident, Mora was not entitled to the submission of a comparative negligence
    question. Accordingly, the trial court erred in submitting Question Nos. 1 and 2.
    II.    Enhanced or Increased Injuries
    Mora contends the trial court did not err in submitting Question Nos. 1 and 2
    because Block’s conduct caused his injuries to be enhanced or increased. Whether
    Block’s failure to secure the tire in the pickup truck’s bed enhanced or increased his injuries
    suffered in the accident is of no moment as to the issue of comparative negligence. Under
    Texas law, the concept of comparative negligence has “no application to a plaintiff’s
    actions which antedate the defendant’s negligence.” See King Son Wong v. Carnation
    Company, 
    509 S.W.2d 385
    , 387 (Tex.App.–Houston [14th Dist.] 1974), aff’d, 
    516 S.W.2d 116
    (Tex. 1974) (holding that persons whose negligence did not contribute to an
    automobile accident should not have the damages awarded to them reduced or mitigated
    because of their failure to wear available seat belts).
    11
    In 
    Kerby, 503 S.W.2d at 527
    , a linen truck driver appealed a jury verdict wherein he
    was found to be thirty-five percent at fault for his injuries because, on impact with a school
    bus, he was thrown through an open sliding door of the truck and, then, the truck toppled
    over him. Reversing the trial court and court of appeals, the Supreme Court held that the
    truck driver’s conduct of driving with the door open did not constitute contributory
    negligence because it did not contribute to the accident; rather, it only provided a scenario
    in which the injuries suffered in the accident were enhanced or increased. 
    Id. at 528.
    Finding that the trial court had no authority to submit comparative negligence issues to the
    jury and no evidence supported the jury’s answers favoring the defendant, the Kerby Court
    stated:
    [W]e draw a sharp distinction between negligence contributing to the
    accident and negligence contributing to the damages sustained.
    Contributory negligence must have the causal connection with the accident
    that but for the conduct the accident would not have happened. Negligence
    that merely increases or adds to the extent of the loss or injury occasioned
    by another’s negligence is not such contributory negligence as will defeat
    recovery.
    
    Id. at 528
    (emphasis added).8 See also 
    Elbaor, 845 S.W.2d at 244-45
    (post-accident
    conduct aggravating plaintiff’s injuries); Haney Electric Company v. Hurst, 
    624 S.W.2d 602
    ,
    611 (Tex.App.–Dallas 1981, writ dism’d) (purported negligence in carrying a gasoline can
    8
    The Kerby Court further indicated that, “[e]ven if there were proof that the particular injury suffered
    would not have been suffered had Kerby avoided being thrown from his truck, it would not support the jury’s
    finding of percentage contribution.” 503 S.W .2d at 529.
    12
    in trunk of a car is a circumstance enhancing damages rather than a circumstance causing
    the accident and, therefore, not an appropriate ground of contributory negligence).
    III.   Pattern Jury Charge
    Mora further contends there was sufficient evidence demonstrating that Block’s
    negligence was “injury-causing” or “injury-enhancing” to support the trial court’s submission
    of Question No. 1. In support, she relies on comments to PJC 4.1, the broad form
    instruction upon which the trial court based Question No. 1. The comments for PJC 4.1
    provide, in pertinent part, as follows:
    Use of “occurrence” or “injury.” The use of “occurrence” or “injury” in this
    question, as well as in PJC 4.3, could affect a case in which there is
    evidence of the plaintiff’s negligence that is “injury-causing” or
    “injury–enhancing” but not “occurrence–causing”: for example, carrying
    gasoline in an unprotected container, which exploded in the crash, greatly
    increasing the plaintiff’s injuries (preaccident negligence), or failing to follow
    doctor’s orders during recovery, thereby aggravating the injuries
    (postaccident negligence). In such a case the jury should not consider this
    negligence in answering PJC 4.1 and 4.3 if “occurrence” is used, while it
    should consider the negligence if “injury” is used.
    Comm. On Pattern Jury Charges, State Bar of Texas, Pattern Jury Charges PJC 4.1 cmt.
    (2008).
    To the extent Mora asserts that these comments can be interpreted to support a trial
    court’s application of PJC 4.1 under circumstances such as exist in this appeal, we
    disagree. Proportionate responsibility questions, such as PJC 4.1 and 4.3, are appropriate
    13
    when the defendant has met his burden of proof on contributory negligence. That the
    plaintiff engaged in conduct prior to the accident that somehow increased or added to the
    extent of his loss or injury does not establish contributory negligence as to the occurrence,
    i.e., but for his negligence, the accident would not have occurred. See Carnation Co. v.
    Wong, 
    516 S.W.2d 116
    , 117 (Tex. 1974) (failure to wear seatbelt does not permit reduction
    or mitigation of plaintiff’s damages); 
    Kerby, 503 S.W.2d at 528
    (driving with the van door
    open, thereby contributing to nature and extent of injuries, does not permit reduction of his
    damages); 
    Haney, 624 S.W.2d at 611
    (plaintiff’s placement of a gas can in the rear of her
    vehicle prior to a rear-end collision is not evidence of contributory negligence). See also
    Goldberg v. Dicks, No. 12-02-00053-CV, 
    2004 WL 253250
    , at *15-16 (Tex.App.–Tyler
    February 11, 2004, pet. denied) (not designated for publication) (although plaintiff was
    thrown from an open truck bed on impact with defendant’s truck, plaintiff was not
    contributorily negligent); Price v. Arkansas Freightways, Inc., No. 12-01-00050-CV, 
    2002 WL 1065875
    , at *6 (Tex.App.–Tyler March 22, 2002, pet denied) (not designated for
    publication) (trial court erred by including a passenger riding in the trunk of a vehicle that
    was struck from behind in a jury instruction asking whose negligence caused the
    occurrence).9 Cf., Williams v. Steves Industries, Inc., 
    699 S.W.2d 570
    , 575 (Tex. 1985)
    9
    Although the Price Court would have withheld from the jury the question whether plaintiff’s act of
    riding in the trunk caused the occurrence pursuant to the Texas Suprem e Court’s pronouncem ent in Kerby,
    the Price Court reached an anom alous result on causation related to plaintiff’s injuries, i.e., the Price Court
    upheld a jury determ ination that plaintiff was negligent and caused his injuries. 2002 W L 1065875, at *5-6.
    In doing so, the Price Court did not discuss Kerby and/or its progeny; 
    id., and the
    unpublished opinion has not
    been cited as support in any subsequent case. Unpublished cases such as Price m ay be cited but they have
    no precedential value. Tex. R. App. P. 47.7. See Associates Home Equity Services Co., Inc. v. Hunt, 151
    S.W .3d 559, 562 n.2 (Tex.App.–Beaum ont 2004, no pet.); Brinker Texas, L.P. v. Looney, 135 S.W .3d 280,
    285 n.4 (Tex.App.–Fort W orth 2004, no pet.).
    14
    (some evidence of cause in fact where plaintiff’s conduct, i.e., running out of gas in the
    middle of the road, contributed to the occurrence, to-wit: being struck from behind, because
    jury could infer that had the car not stalled in the middle of the highway, defendant would
    not have collided with it).
    Further, to the extent the Committee on Pattern Jury Charges intended the terms
    “occurrence–causing” to describe a contributory negligence defense and “injury-enhancing”
    to represent a mitigation defense, we agree with the use of these terms in the comment
    to PJC 4.1. However, we find no Texas cases recognizing the use of proportionate
    responsibility questions where a defendant is the sole cause of an accident or occurrence
    but asserts the plaintiff caused his injuries, i.e., “injury–causation.” If, but for the plaintiff’s
    negligence, the accident would not have occurred then, depending upon the jury’s findings,
    the plaintiff either partially or wholly caused the accident and the injuries attendant thereto.
    Stated conversely, if the accident would have occurred regardless of the plaintiff’s
    negligence then the plaintiff is not proportionately responsible for the accident. See 
    Kerby, 503 S.W.2d at 528
    .
    The comments to PJC 4.1 appear to endorse the use of a proportionate
    responsibility question under circumstances where a plaintiff is “carrying gasoline in an
    unprotected container which explodes in the crash, greatly increasing the plaintiff’s injuries
    (preaccident negligence).” These facts are similar to those in Haney Electric 
    Company, 624 S.W.2d at 602
    , where the appellate court reached the opposite result. In Haney, the
    15
    appellate court determined that the preaccident placement of a gas can by plaintiff in the
    rear of her car prior to a multi-vehicle accident wherein her car was struck from the rear
    could not be relied upon by the defendant as evidence of contributory negligence. 
    Id. at 611.10
    Accordingly, we do not find the Committee’s comments persuasive under the
    circumstances presented in this appeal.
    Block met his burden of proof establishing Mora was negligent in causing the
    collision. The evidence at trial established she had a duty to yield the right of way to Block,
    failed to do so and, as a result, collided with Block’s pickup truck. At trial, Mora admitted
    she was at fault. Thereafter, it was incumbent upon Mora to establish her affirmative
    defense, i.e, that Block was contributorily negligent. She failed to do so. As such, Mora
    is liable to Block for any injuries he may have sustained resulting from her failure to yield
    the right of way. See 28 Tex.Jur.3d Damages § 2 (2006).
    Having determined Block met his burden of proof and Mora failed to come forward
    with any evidence to establish Block was contributorily negligent, we sustain Block’s
    second and third points of error pertaining to jury charge error. Because we find the
    evidence supporting the submission of Block’s contributory negligence to be legally
    10
    The Haney court did perm it evidence of the gas can’s placem ent to be introduced for the purpose
    of determ ining the chain of events of the m ulit-vehicle collision leading to plaintiff’s death, i.e., whether
    plaintiff’s injuries were proxim ately caused by a second plaintiff, the driver of a postal truck who struck her car
    from the rear, or by the defendant, the driver of a sem i-tractor trailer who struck the postal truck from the rear.
    624 S.W .2d at 608. The evidence was relevant to determ ine whether the driver of the postal truck or the
    sem i-tractor trailer proxim ately caused plaintiff’s injuries, not whether plaintiff caused her own injuries. 
    Id. at 604
    (evidence indicated that, not only was the plaintiff’s vehicle afire, but the postal truck also burst into flam es
    on being struck by the sem i-tractor trailer).
    16
    insufficient, we find the trial court erred in submitting Question Nos. 1 and 2, and we
    proceed with a harm analysis.
    IV.    Harm Analysis
    When a single broad-form liability question erroneously commingles valid and invalid
    liability theories and an appellant’s objection is timely and specific, the error is harmful
    when it cannot be determined whether the improperly submitted theories formed the sole
    basis for the jury’s finding. Crown Life Ins. Co. v. Casteel, 
    22 S.W.3d 378
    (Tex. 2000).
    Here, the trial court submitted two competing theories of liability within one broad-form
    liability question that asked whether the negligence of the two parties involved in the
    accident caused the plaintiff’s injuries.    The jury’s answers, finding no negligence
    attributable to Mora and finding Block as the only responsible party, commingled Block’s
    valid theory of negligence with Mora’s invalid theory of comparative negligence. Because
    we cannot determine whether the jury truly found that Mora was not negligent in causing
    the accident or Block was solely negligent in causing his injuries (both of which findings
    would be against the great weight and preponderance of the evidence), we find the
    submission of Question Nos. 1 and 2 likely caused the rendition of an improper judgment.
    As such, the error was not harmless. Tex. R. App. P. 44.1(a)(1).
    Because our finding of error requires that this cause be reversed and remanded,
    and because we may not order a separate trial solely on unliquidated damages where
    17
    liability is contested, Block’s remaining points of error are pretermitted. Tex. R. App. P.
    44.1(b) and 47.1.
    Conclusion
    We reverse the judgment of the trial court and remand the cause for further
    proceedings in conformance with this opinion.
    Patrick A. Pirtle
    Justice
    18