I got 1 wisdom tooth removed last week. I had a shot of anaesthesia(sp?) so it really wasn't a painful extraction process. But my dentist asked me in the middle of the operation why was I pale, and I said I'm really very hungry, I haven't eaten since breakfast.
So I got lectured since I didn't know that it could seriously weaken the body when you extract a tooth and you haven't eaten.
I had double dutch ice cream afterwards to numb the excruciating pain.