It's a story that is repeated on every elementary school playground, nearly every day in our country. Two fourth-graders get into it during recess; something about "he did this, so I did that" and it kind of goes south from there. When they get back to class, Billy trips Joey. After lunch, Joey breaks Billy's pencil on purpose. When nobody is looking, Billy writes on Joey's desk, and later, Joey steals Billy's folder. After school, Billy an…