Out of the thousands of motor vehicles that I've encountered since commuting only a few have been total jack asses. I've had trash thrown at me, yelled & cursed at, had people try to spit on me (only to get in on themselves), tailgated, I guess the whole 9 yards. My temper at first had always gotten the best of me but now I'm pretty immune to it unless they put me in a dangerous situation. It's always the bad encounter we remember but in my experience they are the exception & not the norm, I just have to keep remembering that.