I'm not saying I never did anything stupid as a teenager. I'm no angel, either. Went across the border to drink in Mexico many times (although I was always the designated goody two-shoes...er...driver because I was too scared to drink and drive). One time I went down a one-way street the wrong way because I can't read Spanish, and thank goodness a friend was fluent and talked the policia out of sending us to Mexican jail. If I'd been caught it would've meant hell to pay at home. The one time I got in trouble in high school was because I was 15 min. late for curfew. I was grounded for two months (for that one little thing). I made sure all things I did from that point on were not illegal, and I never missed curfew again.
I think because my immediate older sister was such a trouble-maker and was always grounded or in yelling matches with my parents that I made better choices than I might have otherwise. I didn't want the wrath of Mom and Dad coming my way.