Texas Civil Practice and Remedies Code - CIV PRAC & REM § 87.003. Limitation on Liability

(1) the propensity of a farm animal or livestock animal to behave in ways that may result in personal injury or death to a person on the animal, handling the animal, or otherwise around the animal;

(2) the unpredictability of a farm animal's or livestock animal's reaction to sound, a sudden movement, or an unfamiliar object, person, or other animal;

(3) with respect to farm animal activities involving equine animals, certain land conditions and hazards, including surface and subsurface conditions;

(4) a collision with another animal or an object;  or

(5) the potential of a participant to act in a negligent manner that may contribute to injury to the participant or another, including failing to maintain control over a farm animal or livestock animal or not acting within the participant's ability.