Ok people i am about to lose my mind here...help?

man that would make me SUUUUUPER mad. i happen to have a horse that has never been mistreated and we know this for a fact but she only lets me near her. she hates guys and little kids the most! you could get a sign on the pasture gate that says DO NOT enter unless supervised by owner!! we have to take a sign with us whenever we haul my horse to a show. it says do not pet, feed, or get near this horse!! BITES AND KICKS!!!! so just be creative and if you have horses that you keep for a long while, get them a special sign on their stall. just do whatever it takes to keep people away from them horses!