Had the guy contacted authorities instead of starting an argument with the driver, none of us would be having this conversation. That, and the delay in the shot fired are what's going to eat him alive in civil. He definitely has the right to tell the driver they're and a$$hole, but sometimes you pick a fight not thinking it through. In the same thoughts as "an armed society is a polite society"...he may have thought differently. Or, as stated in the article he is a bit of a bully with that gun on his hip and has threatened to shoot at least one other in an argument before. Still side with not arresting as he was not the physical aggressor. Stupid to start the argument, but he didn't throw the first blow.