honestly, I haven't had a drink in about 5 years!! I realised I was only drinking 'cos everyone else was, and if I thought about it, I didn't actually like the taste of alcohol.
but, I think the most memorable incident was the morning after my 19th birthday. I'd gone out on my birthday, got drunk, and stupidly made plans to go out shopping the next morning. I was feeling a bit seedy, almost threw up on the escalators in a department store. So I figured I'd go catch a bus back to the university, and the safety of my hostel room. On the way to the bus stop, we stopped at the crossing amongst all the saturday morning shoppers, and I think I must have been looking a little bit green at this stage.
To cut a long story short, the man in front of me was kinda familiar, and he turned and said hello - it was my high school bio teacher from the previous year (i was one of his "favourites"), I didn't really have time to answer before I lost my balance and ended up falling in the gutter
To this day, I still wonder if he went back to school on Monday and told the rest of the staff and destroyed my squeaky clean reputation in my hometown (I was quite well known in the school due to an unfortunate incident involving a dark room and a good friend - when I discovered teachers were worse gossips than students)