Last night my wife and I went running on the local HS track, when this guy in a Miata thought that it would be funny to drive through the small gate onto the track and drive around it. Naturally, this pissed me off since it endangered both me and my wife, so I flipped them off as the came around and kept running.
The driver stopped the car, got out, and started walking in my direction. Less than 30 seconds later a cop pulled into the parking lot, and both the driver and his passenger bailed, leaving their car on the track. I sprinted off the track and flagged down the cop, telling him what was going on. After a brief search, he found the two idiots and arrested them. He hauled them off, leaving their car behind for another cop to take car of.
This may have been the sweetest non-running moment of my running career - this area is full of jerks and idiots that will harrass anybody on the roads. It's the only place I've ever been where people will actually circle back around just to yell something else idiotic at you. Finally one of them got what they deserve.