I had a Facebook account for about three weeks, I signed up to see the pictures that were taken during a scuba expo I attended. Very quickly I had old acquaintances popping out of the woodwork asking to "friend" me, many of them wanting to get together or see if I'm attending our high school reunion, I just wanted to look at the pictures and had no idea it would make things like my personal email available to strangers.

I learned I could change my security settings but it was too little too late, I deactivated the account and am changing my email account.