I once was animating a couple of frames (considering that it was 30 and every 30 frames takes me about 4 hours). I was having a break from the tedious animating process without saving. Then suddenly, my computer froze, and I couldn't recover from the freeze, so I had nothing else to do but manualy turn it off and on using the on-off switch. Wich means i had to repeat the whole thing for another 4 hours.
Moral of the story: I feel your pain, bro.