David, I REALLY have to disagree. Your sister has been LUCKY.

I know personally (not through hear-say, but direct pesonal knowledge of the people) of children who have been CONVICTED of ADULT crimes for posts on MySpace. (ala "I wish ....was dead, I hate him/her).

I am a strong advocate that NO CHILD under the age of 18 should be trusted to the point of stupidity. I know of no responsible parents who would hand their child a bottle of booze, a gun, and a stash of illegal drugs,send them into a major city alone, and TRUST them to be safe.