This happened to me a loooooong time ago.
Let me relate a situation that happened with my very first CCW permit. I was at the University of Alabama and when this happened I'd just turned 21 and only recently gotten my CCW like the other Army ROTC cadets. I guess I was a junior and it would take me another couple of years to graduate due to credits lost in two school transfers.
I normally rode a 1971 Yamaha 650, but THIS night, I wanted to take my girlfriend to dinner someplace nice. So I borrowed my roomie's Chevy Vega. We're stuck at a stoplight at midnight in downtown Tuscaloosa. Car in front, car behind. TIGHT fit. The other lane is clear. This 1969 Pontiac pulls up and stops next to us. It doesn't move another car length forward to the front of the line. It stops next to US. The huge car is PACKED with Fraternity BROS. You know, the FRAT that BRANDS it's greek letters into the bicep so that a scar is raised above the rest of the skin? Anybody know who I'm speaking of?
ANYWAY, these dudes start talking in loud voices and in very explicit language about my girlfriend. She is plainly terrified. I'm more than a little bit concerned as well. Keep swiveling my head to see if I can spot one of my classmates in the School of Criminal Justice. All the local cops are in my classes. I stayed very frosty. Told my GF: "Ignore them. The light will change and we'll be gone."
Well, the light didn't change and we were still stuck. Finally the driver gets out of the car saying loudly about how he's Gonna kick this candyA$$ and slice him a piece of fine WHITE meat.
I was wearing a Smith and Wesson M19 .357 magnum loaded with 125gr SJHP. I was sporting the piece in my much saved for SafariLand Shoulder Holster. So this guy gets out of the car and crosses in front of his hood. When he gets to the middle of his hood I draw the M19 and lay my wrist along the sill of the window and say calmly You REALLY don't want to DO this." He never missed a beat. Wheeling 180 degrees, he sneers SHEEEEEEEEEEIT, I wuz jes JIVIN' YOU. Suddenly where the car had been packed to the gills, you could now see completely through the vehicle and out the other windows. They were all huddled on the floor whimpering to get out of there....Dude's got a GUN! They burn rubber and run the light just as it turns green. I tried to reholster but couldn't because I was shaking too much. Laid the gun on the seat and drove directly to the police station. The guy on duty, I knew from class.
Hearing the story, he instantly said I should have blown him UP and saved the city the cost of a trial. Well that's ALABAMA in 1978. I'm glad I didn't have to shoot. I'm also aware that had he taken one more step. I would have fired. Two years later, I was commissioned as an Officer of Infantry in the US Army. I was 23. By then, carrying a concealed firearm was old news. I have continually carried a firearm since that time and held permits in multiple states. There have been other close calls and other events.
When I first started carrying,I was pulled aside by a lot of very experienced folks from my ROTC unit and they told me just how serious a responsibility I'd undertaken and they expected me to perform as I was expected to perform on active duty when I'd have responsibility for not just MY life but the lives of the troops I'd command. I got real serious, real fast. I've never forgotten those talks and those times. In just two days, I'll be 50 years old.