At the beginning of this week, a question quota of 3 questions per class was established. This was only enforced when it came to raise-hand questions and not questions and comments volunteered; it seems to have had a bit of an effect, though.
This kid, however, told me that he's simply waiting until we get to medieval warfare before he's going to take the teacher down.
I noticed that he's also not on the Dean's List. And it's not too terribly hard to get on it.