the one thing i can think of offhand is watching my friend give birth to twins. the miricle of life is oh so amazing but oh so gross to watch at the same time.
also something really gross i saw was a dear on the side of the road that was dead, and its head was sliced perfectly across >_< and buzzards were on it by that time.. my friend and i also smelt something really gross in the woods so we followed the smell o the sorce.. it was a dead racoon lying on its back w/ its hands and feet stiff in the air.. and the skin was peeled of and everything stayed in place ...so nasty