Richard F. Shepard in his book, In Enemy Waters, tells about two men he saw pummeling each other in a gutter where each had a car half-parked, one frontward, one backward, in a parking space. The irrationality of it all, he says, was emphasized by a sign in front of the parking place that said, "No Parking." Of course, the point wasn't that they were both trying to park in a no parking zone. The point was that they both were probably carrying around anger that was just waiting to erupt.
Anger is one of our human emotions. We need to make sure we work through those emotions.