Sociology and Critical Thinking

I had two more exams yesterday. Sociology in the morning--two hour exam. Slightly dodgy 12-mark question, but I think I've blagged it okay. It was asking about why there are different pupil subcultures, which we've not really looked at at all, especially not in that sort of context. Anyway, I rabbitted a bit for that. Finished it forty minutes early, so I was sat there being bored for ages. Critical thinking wasn't so bad. Again though, I finished forty minutes early. I've now come to the unfortunate conclusion that examiners work out how much time you need and then add forty minutes. They could at least give us sudoku puzzles to do once we're finished.