My son Patrick is a senior in high school. Up until this year he was a pretty good student, with a 3.1 GPA. Now, however, he is frequently late for school by a couple of minutes -- so much so that he may not graduate. He is also leaving all assignments until late on the night before they are due, then not completing them or handing them in. He can't or won't say why he does this; he says he is "different " from the other kids who get their work done. What can we do?