I don't really suffer from road rage when I'm driving a car, but I notice that I get the worst case of it almost every time I bike to work. The most recent occurrence of this was last week. I was driving on a two-lane road with no bike lane and keeping a few feet away from parked cars on the side of the road as every biker should to avoid getting "doored." However, some jackass in a silver BMW apparently didn't know that the law gives me as a biker full use of the lane, and decided to honk his horn at me for delaying him for a few seconds. As he passed me, I looked up to memorize what the car looked like and dead serious with no thought said aloud "I am going to find you and fucking kill you."
I then giggled at myself for being so melodramatic, but for those few seconds, I was in a cold rage. Scary stuff. I wonder why this happens to me when I'm on two wheels but not four?