One day, Bob came home from school very happy and that got his mother suspicious; "What’s the matter Bob? How come you’re that happy?" "You can’t even imagine-..! Today at school, I planted a bomb on the teacher’s chair and we all laughed sooo hard!" The mother upset: "Aren’t you ashamed of yourself? Don’t you know that you’re going to be suspended? How you think you’re gonna show up in the school again tomorrow?" And Bob, with a stupid smile on his face: "School? What school?"