When I was in HS, I was bored out of my mind and I would sleep through most of my classes. I had one teacher tell me I should just quit. I woke up to my accounting teacher telling another student that I've missed one question in nearly 2 semesters, so as long as my grades are that good, I can sleep all I want.

Bored smart kids can be just as distracting as frustrated average (and below) kids.