The "kicked out" thread has lots of mentions of underage drinking, you bunch of hellions!
Was underage drinking a regular part of your teenage years? How old were you when you started having regular drinks? Did you mostly drink in homes or in bars as a teen? Did you ever have a fake ID? Did your parents know you were drinking, and if so what did they think about it? Was your decision to drink a conscious, screw-the-establishment's-arbitrary-age-laws thing, or a teehee-I-iz-wasted thing?
I was pretty straight-laced for the most part. My friends and I would mostly hang out at coffee shops, not bars -- we thought we were very deep, sitting around drinking coffee and talking philosophy. I drank alcohol a few times as a teen (mostly southern comfort -- I had a thing for Janis Joplin), but it was not a regular occurrence at all. I think I only got actually drunk maybe twice. I never had a fake ID or ordered a drink in a bar while I was underage. Alcohol just didn't hold much appeal for me -- I still only have maybe 5 drinks per year.
I smoked pot more often than I drank, but other than my first semester of college (I was still 17) when I smoked several times per week, even that was a pretty occasional occurrence -- maybe once or twice a month, and I stopped that altogether by the time I was 20.