Its been 7 1/2 years since I actually lost my temper. It was terrifying and I've fought since then to avoid that sort of a scenario. Was at a pub with my ex and some friends. I had gone outside for a smoke, and when I came back in she had done something, and I walked over a bit steamed and began venting my displeasure with the scenario. A friend of ours was feeling like a tough guy and stood and pushed me shouting "You aren't her father, don't F***ing tell her what to do". It was at that point that the loads of whiskey I'd been drinking all night decided to take over my body. I didn't black out, but I beat the dude badly. It was surreal, I was completely aware of everything, but all restraint was gone. This long after I still feel bad for how bad it was. He ended up with 4 broken ribs, a broken collar bone, his jaw broken in two places, a dislocated shoulder and he needed a few stiches. Took four people to get me out of the bar (it was down stairs), and one of the people carrying me lost their grip on my arm and got a broken nose out of it. The owner told me to never come back.
I'm lucky I walked off without getting charged, I could have probably gotten a few years or probation for the severity of the beating. Luckily for me I was 18, and the bar tender refused to call the cops (given I was underage, the bouncer hadn't bothered to card me) if he had, he'd be fined/charged and would have lost his liquor license.
I went back when I turned 19, apologized to the bar owner, bar tender, head bouncer, and the dude who's nose I broke and asked if I could come back.
The response was hilarious "No whiskey, right?"
My blood just mixed badly with it and I had a bit of a postal moment.
I've come close a few times, since then. Its one of the hardest things to fight in this day and age. Humans are competitive and combative creatures. Sometimes fights happen. I still stand on the "If there is no severe/permanent damage" there is no need for charges, but thats just me.