Never been in a gunfight, and never never ever want to be anywhere near one. A few times I came close: walking downtown I had just stepped onto the sidewalk and was headed towards the entrance to the deck where my car was parked. A group of late teens/early twenties kids walking the same direction in the middle of the street kept turning and yelling at the doorman of the club they had just left. Suddenly one of them yelled "say somethin' back to this!" (or words to that effect) and yanked what looked like a Walther or Bersa .380 from his pants pocket and fired three shots back towards the club, not really looking where he was shooting or breaking stride, just half turning his body as he walked and pointing the gun behind him. Then he put the gun away. Less than a second to take the gun out, squeeze the trigger a couple times and stash it again. Lot's of buildup to the firearm use, but the actual deployment and use of the gun was very sudden and brief. Noone hit. I just stepped into the garage, used my cellphone instead of my gun and pointed out where they had gone when the police went by. Lot's of cops in that part of downtown at that hour, a car was less than a block away. I could have hidden behind one of the pillars of the garage and taken my time to draw and ambush, but elected not to. It wouldn't have been self defense since he wasn't shooting at me, and by the time I processed that there was a gun threat, he had stopped shooting and didn't seem like he would start again, and it wasn't my job to apprehend him. Go ahead and call me a wuss, but I think I made the right decision.
Another occasion, a friend of mine and I were robbed in a Wal-Mart parking lot. No gun on me, but during the robbery he pointed the gun at my friend, away from me and asked my friend to lay down across the seat of my friend's car. I was standing at the trunk, and had I been armed could easily have taken a careful, aimed shot at close range and taken the guy out while he messed with my friend, as it was I ran around the car towards the robber with some vague idea of grabbing or pushing him, and almost stepped into the barrel of his pistol (two tone browning Hi Power, silver frame blue slide) as he brought it to bear on me. He asked me to empty my pockets and I refused, and by this time a cashier and a shopping cart attendant (no security at all - I should have yelled "shoplifter!") saw what was going on and rushed out to the car yelling that they'd already called the police, and the guy ran to a car and sped off. I followed him to his car and read part of the license plate but had to jump aside as he nearly backed the car over me. Had I been armed, there would have been plenty of time even before the guy drew down on us, as I saw him walking in our direction, got a really bad apprehensive feeling about him for reasons I couldn't quite put my finger on, and then dismissed that feeling as paranoia and turned my attention away from him. I'll never doubt my instincts again, and this scary incident was what motivated me to acquire and learn more about weapons and self defense. (They caught the guy sometime later. Something like 19 counts of armed robbery!)
The only shot I ever fired in anger was at a dog (maybe a coyote) that came into my yard and attacked my chow. They spun around awfully fast but separated for just a tiny split second, and I took that opportunity to draw and shoot (I pack at home) but I'm embarrassed to say I was in such a hurry that I drew and shot one handed, from the hip, without even trying for any sort of sight picture. The other dog yipe-yiped and ran away but I'm pretty sure it was from the noise of my pistol (short barreled .45) instead of from being hit or injured. Actually I hope I didn't hit it because I never got a second shot and never saw it again, by the time I had checked my dog for injuries the other dog was long gone. I looked for it. There was some blood but it may well have been from the dog fight. Hate to think I wounded but failed to kill an animal, but I was more concerned about my dogs wounds. That incident made me think more about point shooting and shooting from retention positions and ways of shooting that don't involve two hands, front sight, shooting stance, etc. since that's how I wound up using the gun under pressure. No actual gunfights, sorry for the long and only tangentially related post.