I think it's because you're a crazy person. However, I've been told that I can get a little too enthusiastic about maths. Just a bit. As for why you didn't conform, I imagine it was the fear of failing, it'll make you do all sorts of crazy things!
Studying for midterms has become my life. Seriously. I only leave the flat to go to class, then I come home and then I study. I swear I had a life at some point.