What are some of the best (or stupidest) things you've done to buddies' cars for laughs?
I'll start with my 2 personal favorites:
Put flour or Talcum powder down the vents and turn the blower up to high (with the car off) so when your buddy starts it up it blows all over the inside of the car.
This one is my favorite of all time: while stopped at a light (while you are the passenger) in one fluid motion put the car in park (if it's an auto), turn off the ignition, pull out the keys and toss into the back seat (or if you're really mean, out an open window.)
