Stereos, loud ricers, and loud bikes annoy me. I like to roll down my window and signal for the guy in the car with the loud stereo to roll his down. Then, he turns his stereo down, rolls his window down, and I ask him very quietly if he is hard of hearing.
It is also funny to signal to them that they have a flat tire. The will pull over, kick all of their tires, realize you were just messing with them, and curse you.
Phil
