Tominator, I (oddly enough) have a similar story, except it's about me. Let me preface this by saying that I am not an alcoholic, I did drink often in college but not that much anymore.
When I was in college at a small school, I visited a friend at a state school. His fraternity was having a huge party. There were probably more people at this party than there were undergrads at my school.
Anyways, I decided that I was going to try to finish a fifth of SoCo that night. I was pretty much a heavy binge drinker at the time, and I guess I figured, "what the heck?", even though I had never drank that much before.
I drank the first half of the bottle in about half an hour, before they even opened up the party to the general public. I was just taking huge swigs off of it (it sure went down easy!) and running around with the bottle in my pocket. I continued just guzzling it after the party started and there were tons of people there. Needless to say, that night I was drunker than I ever have been before then or since. My memories of the rest of the night are vague at best.
I actually got kicked out of this party with several thousand people there. I am a pretty big guy and apparently I was just stumbling around running into people and trying to have conversations with strangers (normally I'm pretty shy). One of my other friends lived nearby and he started to help me home. Meanwhile, the bottle of SoCo was not quite empty and I was apparently quite determined to finish it. My friend was trying to take it away from me (one good reason is that we were walking down a public street) but I apparently would not let him. Eventually, I managed to break the bottle across my leg. Fun times!
Furthermore, as we were walking away from the fraternity house, I kept trying to run back to the party until my friend eventually had to just tackle me to keep me from running in that direction.
The next thing I remember is waking up in my friend's extra bedroom the next morning, not knowing where I was. I got up and walked to the window, and imagine my surprise when I realized I was on the second floor. I had never blacked out while conscious like that before. Quite an experience.
The worst part of it is, they only let 1/3 as many guys as girls into this party. I do remember walking across the dance floor and having girls grab my butt (not a common occurrence). By getting so out-of-my-mind wasted, I most likely missed out on some nookie.

:|
Amazingly, I never threw up and my hangover was not that bad. I was able to eat and everything, I just had a headache. I was also a little sore from being tackled in the street. I don't think I have actually ever had SoCo since then, and I used to drink it all the time.
The moral of the story is:
Do NOT drink that much alcohol at once, but ESPECIALLY not that much Southern Comfort!!!