Teacher asks her class, “What is the animal depicted on a weather vane?” Little Johnny, the infamous troublemaker, says, “I know, teacher, I know.” Against her better judgment she calls on him and he says, “Teacher, it is a cock.” Teacher asks the class, “Why is a cock on a weather vane?” “I know, I know, teacher,” says Johnny. “OK, Johnny, Why?” “Because, teacher, if it had a cunt on it, the wind would whistle right through it.”