Pain

Sticking one's fingers, bearing open cuts, in 5% Hydrochloric acid or drenching them in grapefruit juice, both surprisingly hurts less than getting one of those same fingers caught in a door. Ok, so I've got a few cuts on my fingers but I need to etch rocks as part of my job (hense the HCl) and I need to eat (hense the grapefruit, which was surprisingly juicy), but I really didn't need to get my middle finger caught in a door before writing a 7 page philosophy paper. The grade that I'll get on this paper because it's pure BS, half way through which I actually manage to prove that Darwin's theory of evolution is not a valid scientific explanation, will certainly hurt most of all.