[Strangler Lewis]

If he's just bored and frustrated, he should finish. Once he gets a job, it will be hard to go back. If you haven't already, you should explore whether his problems are social. We had a former babysitter who pushed to graduate as a junior, not because she was academically precocious but because something about the high school scene was too cruel and painful for her. Maybe he's concerned about going back to associate with people he knows he shouldn't associate with.

Good luck with it.