I know it is not uncommon for your friends at college to mess with your profiles when you leave yourself logged in but this time they went too far. It is just awful if you can not leave your own computer in your dorm room and expect it to stay safe.
I have this adult sex cams site that I love to visit and even have my own personal profile on. One day I was late to class after falling asleep right at my desk the night before and did not have the time to even think about logging out. When I got back to my room I did not even notice that anything was wrong. It was only later that night, after getting a few mocking messages that I realized there was a problem. Someone had changed my sexual orientation as well as other things and even posted my dog as my profile picture.