on damage:
	attacker is a player
	attacker's vehicle is horse
	chance of 10%
	force attacker to dismount

on damage:
	victim is a player
	victim's vehicle is horse
	chance of 25%
	force victim to dismount

on damage:
	victim is a horse
	victim's passenger is set
	chance of 50%
	force (victim's passenger) to dismount