I just read a story about a girl who was going to school to be a teacher. The school happened to find her "MySpace" page. On it was a picture of her with a drink in her hand and the caption was, "Drunken Pirate"....

The school told her she wasn't fit to be a teacher and denied her the teachig certificate a day before graduation.

My guess is there is more to this story than just a picture on a website however just remember that anything what you publish on the web might come back to bite you!