I remember my father telling me about a time that he screwed over some guys who were trying to cheat off of him. He was doing really well in a class and when he came into the final, there were two guys waiting for him to get there so that they could take the seats next to him and look off of his test. They were pretty obvious about it and as soon as he walked into the room he could hear them saying "hey, there he is. Let's go." He looked at them, smiled, and took the last open seat at the end of a row with people sitting behind him so that they couldn't get a seat near him. They were pissed.