Based on the continuing replies from other members, I think people are missing benjammin's clarification that he is talking about what happens when you're standing on the side of the road, no longer driving.

I think we all agree that driving at freeway speeds with an aggressive road rager with one hand and also trying to do something effective with a handgun with the other hand at the same time is not practical except in action movies. Well, unless you call waving it around an "effective" strategy. But once we're all stopped and maybe out of our vehicles, then the dynamic is very different. Trying to drive is no longer an immediate concern.

Actually, speaking of "waving it around," I had to chuckle when I read this thread and then a news article yesterday about some idiot that shot himself in the stomach while driving after he waved his pistol at someone during some road rage incident. The article didn't give details, but I assume that it probably went off as he was shoving it back into his waistband. He's probably glad that it wasn't pointed more downward at the time it went off.