we got a prank war going on at work. So far Ive put hole punches in his air vents, next step is the zip tie on the driveshaft. I saw on a movie where someone wired the horn to the brake pedal, to whenever they pushed the pedal, the horn goes off.
Baby powder and glitter in the a/c vent. make sure the a/c is on so when the victim starts the car haha glitter and baby powder shoot out. It's awesome.
or take it apart and reassemble in his house, a la Youth in Revolt.
Piss in a cup and poor it in the whatever it's called vents by the windshield so he smells it whenever he turns on the air. I'm drunk and can't think of the damn word. I'd never do this, but I've heard of it.
Oh ok I'd like to do something like that to really get them but I'm not mechanically inclined and if I got some friends to do it during our Ag class we'd prolly get caught.
you could always take a milk jug, poke holes in it, put tobasco and other pepperish type stuff in it, then drop an mre heater into the water. The water will steam, in essence filling the car with tear gas