I've got a pretty good one, albeit a bit embarassing. After a night of drinking me and my friends went to the park, and on the way back someone suggested a piggy back race. Being naturally competive, and partly due to the 15 shots of vodka I'd consumed earlier, I figured it sounded like a good idea. I took of running, and was in the lead by quite a bit, when suddelny I found myself unable to run anymore. I was goin pretty fast and suddenly my legs just stopped running. I fell face first on the gravel covered asphalt, and as I was using my to hold someone up I couldn't use them to stop my fall, and I ended up taking the full force of me and the person on my back straight on my face.
I chipped my 2 front teeth, got a huge scrape on my forehead, as well as cuts on my nose and cheek, a black eye, and a piece of gravel lodged in my chin. I also had noteworthy scrapes on both elbows and down my chest.
I got right up, and being as drunk as I was I couldn't feel it at all. After a while one of my friends finally saw my face and said "Duude, you're face got FUCKED up." I reached up and sure enough, my face was covered with blood.
I then walked back to my dorm, where my friends fixed my up as best they could, and as they where scrubbing my wounds with rubbing alcohol I remember remarking "this is the worst pain ever!" immediately followed by me drinking several more shots to kill the pain. The rest of the night I have no memory of, but apparently forgot my adress, my moms name and when asked my phone number I responded with "1..uhh, 2, 3,4. Yeah thats it."
The kicker was that some girls had been playing with my hair, and it had put it in pigtails, which I forgot about soon afterward, and wore them unknowingly for the whole of the experience.
I'm all fine now, and I got my teeth fixed, but I've cut back severely on the drinking.