I used to shoot at Blackhawk when I lived in San Antonio in the mid-late 80's. Long drive but a nice facility. Driving in one day some horses were loose and as I drove past them I noticed these gaping wounds on one or two of their necks. I was like "holy shit! I better tell somebody".
So in the pro shop I describe it and the fellow there was like "meh, they're just fighting". And I said "FIGHTING? What do they fight with, Bowie knives?"
He says "They bite." I was astounded. I had nil horse experience, had no idea. Tough to offer one a carrot since.