None of the curriculum challenges me, even in the advanced courses. Whatever I don't already know I absorb really quickly.
So when we spend a week reinforcing a concept I've known for years, it gets exceedingly tedious, and I tend to stop doing the work. I'm quite an annoying student because I get ones [haha German] on tests, but do really poorly in the class overall.
And I have to go and get ready to go somewhere, so I probably won't be able to reply back.