A boy overhears two teachers in the staff room at school talking about prostate exams... Curiously he wonders over and listens to the conversation through the staff room door. "I didn't think exams were until the summer" the boy thought to himself. When home the boy asks his dad what a prostate exam is. His dad says: "Son, a prostate exam is where a doctor puts his hand in a man's bumhole and feels around." The boy says "Oh" and looks puzzled... "Well I hope we don't have to do that at school!" the boy exclaims... then he continues "but dad, why is it only men that get prostate exams... cos I saw you give mum a prostate exam last night!"