Via CGSDB:

On 05-12-08 at about 7:25 p.m., Officers were dispatched to McDonald's restaurant, 815 Chetco Avenue in Brookings, Oregon for a report of a fight between multiple subjects. While in-route to the call, officers were notified one of the individuals involved in the fight was waving a gun.

Police officers arrived on the scene less than one minute later and found Kerry Von Pohle (9/18/1948) pointing a revolver towards Kevin Eber (10/7/1989) and Jacob Shelton (9/5/1988). Officers drew their firearms and commanded Von Pohle to put his weapon down. Von Pohle complied with these commands. An investigation revealed Von Pohle had drawn his gun in self-defense.

Kevin Eber had thrown a partially full beer can, striking Von Pohle's car. Von Pohle asked Eber why and Eber became violent, telling Von Pohle he was going to kill him. During that exchange, Shelton attacked Von Pohle, striking him with closed fists and slamming his head into a parked car.

Von Pohle attempted to fend off the attack but realized Eber was closing in on him as well. Von Pohle drew his concealed 9mm revolver (for which he had a weapon permit) and pointed it at both subjects telling them if they came any closer he would shoot. The suspects stopped their advance. Von Pohle also had called 911 to notify police.

Notice the ages of those involved. The old guy had his slammed into a parked car and was punched by a couple of younger guys but still managed to get control of a threatening situation because he was armed and prepared to defend himself.

He didn't even have to shoot anyone, which is a bonus.