Driving irritants or Road Rage?

I don't drive (Im' 16), but I do bike everywhere I go, and I live in a pretty busy city. And let me tell you, there are some stupid morons driving out there who don't pay attention to anything. People who don't realize they're driving 3,000 pound deadly weapons. I've had people pass me at high speeds very close when they didn't have to, people cut me off (which is inexcusable, you have to look before merging), people open their doors right into my path. Just the other day a truck merged right in to me, but I'll give him the benefit of the doubt because it's possible I was in his blind spot. But you asked about road rage. The most extreme thing I've ever witnessed was between a cyclist and a sport's car. The sport's car cut him at about 50 mph. He could have killed him. So the biker caught up to the car at a red light, and kicked his door in. Literally, he left a big old dent in the door of this brand new expensive sports car. The biker took off down a side street and the car started chasing him. Unfortunetly, I didn't get to see what happened next, but I can only imagine.