Once when I was in the Marines I was throwing a party off base at my house with a bunch of chicks my (then) wife worked with. A few guys from my unit that I wasn't really friends with showed up drunk, and I refused to let them in. A fight broke out, and we dragged back to base by the Military Police and confined to barracks for the night. In the middle of the night three of them attacked me, gagged me, and dragged me outside to the laundry room. There they tied me up to a chair and beat the shit out of me for the next three or four hours. Eventually I broke free and ran; I woke up the next day in the hospital. I had a broken finger, lots of bruises, and internal bleeding.
This is me a week after that incident...
After the Marines I was working a a fast food restaurant, and some seventeen year old kid got jealous that I was flirting with his g/f. One night as we were closing down I was taking out the trash. I propped the door open with a 2x4, and was half way to the dumpster when he pulled up with a gun. I was like "whatever, either shoot me or walk away because I got work to do" (or something like that). I turned around and went about my business and the fucker shot me in the ass. I'm not sure if shooting the gun scared him or if it was the fact that he had just shot someone, but either way he dropped the gun. I wasn't hurt - it went in my ass and right out - so I grabbed the 2x4 and beat the shit out of him, breaking his jaw.
I ended up taking his parents to court and that's how I bought my first new car.