I thought it might be a good idea to get a couple of these out of the way so people don't post about them later.
These are offenses that you have little/no chance of getting away with:
1) Not paying parking tickets - Whoever owns your vehicle will get the registration suspended, and, in some cases, get their liscence suspended. Not a good thing, especially if that's you/your parents.
2) Unpaid speeding tickets/fines = Warrent out for your arrest. The police got your name and not just your liscence plate # this time, remember?
3) Credit card fraud - There are few people who get away with this, and many who do will soon get caught because of how often they do it. Nobody just cards merch "once in a while", and repeating the same actions will start you on the road to getting busted.
4) Not returning library books - If your library is a bit bigger, you'll probably get the overdue balance forwarded to a collection agency. At least, that's what just happened to me.
Notice how these are all "not paying" style offenses. I happen to know those because I got really far behind on bills for a couple of months and the hounds all just came out at the same time. Not a good thing to happen.
Another one would be writing bad checks. Not only will your bank rape you (assuming it's still an open checking account) but you might even get to go to court if either the bank or the businesses sue you. ROCK!