I havnt really had that many bad head rubs. The worst one was when me and my buddies were out huntin and got a nice buck. My friend Steve cut it open and started to pull the guts out and his hands were all bloody and the intestines had ruptured and it was just nasty. Well he said "I better rub your head for good luck because I forgot bags to put meat in so this deer better stay good til we get home". I had nasty bloody crap on my head, I stil wont let him lie that one down.