|A grade school teacher comes into class one morning to find a litany of dirty words written all over the blackboard. She is very upset and tells the class to close its eyes and count to thirty. During that time, she says, the person who did it should erase the words. The class and the teacher close their eyes, and, after the time is up, open them. The board is indeed erased, except for a small note in the bottom of the board.
"Fuck you, teacher. The phantom strikes again!"