Sam is a cutter. His guidance counselor, his mom, phone calls, don't help. Finally, I told him about the "chip". The "chip" is a little tracking device, that with parental approval is implanted in the back of a student's neck. Every teacher has access to the code and when Sam is not in class, they push a button which forces the head to twitch back and forth uncontrollably. The twitching will only stop when Sam is in the same room as the detonator. I asked Sam if he thought his mom would go for it and he said "probably" and looked a little nervous. Today, before class, I talked to Sam about the "chip" again and he assured me he wanted no part of it.
Sam has returned to class before so his improved attendance is not really a sign that my little science fiction story is working, but it was worth a chance. Nothing else seemed to help.