If you haven't shared that here, would you mind doing so?
I was an assistant prosecutor at the time, primary assignment was the child abuse team. I had taken my son (then age one) to a check-up, and stopped for gas. Truck pulled in next to me, up to the pump parallel to the one I was using. Guy climbed out, and I recognized him right away as the grandfather of a mother I prosecuted in a child abuse case. She went to prison, and in the parallel case, the kids were placed with foster family for adoption. I'm next to my pump, my car was between us, my son was on the back seat passenger side (gas fill was on the passenger side of the car, too). Car was a 1995 Chevy Beretta. Anyways, he climbed out, reached in the bed of the truck, pulled out a pipe, and said in what I remember to be a frighteningly calm voice "you took my family from me, how about I take yours?" I pulled my handgun. Smith and Wesson 649 Bodyguard, Uncle Mike's grip. Bianchi leather holster. Ammo was the only kind I carried back then, Federal Hydra-shok, +P, 129 grain. I didn't aim at him. I had it in two hand, pointed down towards the trunk of my car. But he saw it. I remember him saying "ahh *expletive deleted*it" before turning, throwing the pipe back in the truck, and driving away fast. I finished up and drove to the police station, talked to a detective friend and made an incident report, but filed no charges. Why? Wasn't worth stirring things up more for a misdemeanor charge since he didn't do more than make a threat, especially since he would have been handed my address in the discovery packet.
I've maintained a weapon nearby ever since.