One boy, who's father is a farmer, is watching over his cows when he notices a bull having its way with one of the cows. So the boy runs over to his father and shouts, "Dad dad, the bull is fucking the cows!!!" "No no, you got it all wrong son, the bull is 'surprising' the cow," his father replies. The boy understands and runs off. The following day, the boy notices something else that the bull is doing strange, so he runs over to his dad again and says to him, "Dad, dad!! The Bull is surprising all the cows!" The dad replies, "That's impossible, he can't surprise ALL the cows!!" "No he really is dad!!" says the boy, "now he's fucking the horse!!"