I had a good pair of regulars for most of that duration that came in on the busy nights. Pseudo bouncers. They were big men and drank essentially for free.
Once when they were NOT there, I had to do a Jesse Owens 'leap over the bar' to break up a fight, just as I got in between them, BAM, I knocked out. It stopped the fight, and I learned a lesson, stay out of it.
Let one of them get the other on the ground before jumping in.
Another time a guy I had cut off flashed a gun at me inside his jacket and threatened to shoot me in the nuts. I just picked up the phone and told my manager "Dial 911, we have a weapon in the bar" and said it loud enough for the perp to hear. He left. Cops caught up to him down the road I heard.
Another time, a pair of guys I'd cut off earlier in the evening...well, they decided to stick around and wait for me to come out the back door at 2am. One was sitting on the hood of my old beater, the other was leaned up against his own car. "Well well well, lookie what we have here!" one of them spouted.
I got so frickin mad I charged them both screaming all the way across the parking lot "I don't care if I die, this job does NOT pay enough for this roadkill. One of you is going down!"
I must have looked a little crazy as they immediately jumped into their 'running' car and tore out of the parking lot about the time I arrived. Still angry, full of adrenaline, I grabbed the bumper and was suddenly a passenger, being drug around the parking lot. They finally took the corner out of the lot and I swung off, rolling, ruining my shirt, shoes were focke-d up. I was shaking like a tree, so much adrenaline. I am pretty sure I would have killed one of them if I'd got to them before they escaped.
I should really document those 6 years, it'd be a pretty good book. Lots of women, drugs, after hour parties...damn, I was really planning to save those brain cells for old age but alas, I spent them in my youth.