This probably doesn't deserve its own thread, so I'll tack it onto this one. It's topical enough.
I was talking to a British friend the other day, and she told me about an American friend of hers who drove on his US license in the UK for six or seven years. He figured, every time he went back to the States on vacation, his US license reset and he got another legal year in the UK. (WRONG!)
It gets better. He kept it up until no insurance company would touch him. Then he drove without a license OR insurance. (Oh, so VERY wrong!)
Some days, I feel like a chump for being such a goody-two-shoes. Then I think of the likelihood this dude could get his bad self deported in the current climate, and I feel better.