Indiana Code Title 34. Civil Law and Procedure § 34-6-2.1-100

(1) The propensity of an equine to behave in ways that may result in injury, harm, or death to persons on or around the equine.

(2) The unpredictability of an equine's reaction to such things as sound, sudden movement, unfamiliar objects, people, or other animals.

(3) Hazards such as surface and subsurface conditions.

(4) Collisions with other equines or objects.

(5) The potential of a participant to act in a negligent manner that may contribute to injury to the participant or others, such as failing to maintain control over the animal or not acting within the participant's ability.