Texas Civil Practice and Remedies Code - CIV PRAC & REM § 93.001. Assumption of the Risk:  Affirmative Defense

(1) committing a felony, for which the plaintiff has been finally convicted, that was the sole cause of the damages sustained by the plaintiff;  or

(2) committing or attempting to commit suicide, and the plaintiff's conduct in committing or attempting to commit suicide was the sole cause of the damages sustained;  provided, however, if the suicide or attempted suicide was caused in whole or in part by a failure on the part of any defendant to comply with an applicable legal standard, then such suicide or attempted suicide shall not be a defense.