I remember the old "This is your brain" commercials with the egg and the frying pan and that girl going fucking psycho and trashing the kitchen. Now that I look back I realize just how fuckin hilarious it was.
The one with the girl gettin hit at the drive thru was pretty funny. Also the one with the kid standing on a dock watching their friend "drown".

Its especially great to see an anti-drug ad followed by a Coors or Miller commercial...don't smoke pot kids, DRINK MILLER!