One morning a teacher comes to the class and sees a penis drawn on the blackboard. She puts on an ignoring face and simply erase it with a sponge. Next day she comes to the class and there is penis on the blackboard again, and even bigger. She erases it again. The third day she comes to class there is a giant penis drawn all over the blackboard and below it is written: THE MORE YOU WILL WIPE IT, THE BIGGER IT WILL GET. YOU SHOULD KNOW THAT BY NOW!!!