JustAnotherVictim said:Poop on their car.
I used to have a PA system in my 1985 Ford Ranger. That was pretty fun. You'd get someone who cut you off, and you could click it on and say something like "Thanks a lot asshole". I got into a little trouble with it though... I had an undercover cop pull right out in front of me, so I got on the PA and said "Yeah, a lifted Ford Rander with it's lights on Must be hard to see right?" And I suddenly see red and blue flashing lights. So I say "But that's ok, you're forgiven... don't worry about it... " He gets on the PA and says "I think we need to have a little talk..." So I hit the PA button again... "so... I probably need to be pulled over for that huh?"