...and here is the story. Take what you will from it.
At the time MMORPGs were called MUSHs and MOOs. A friend in college started logging into one and we all joined in the fun. That's what it was, a bit of fun. Unfortunately, while we did it with some pizza for an hour or two every few nights, he started playing more and more. Eventually, he never left the computer lab. He wouldn't go to the cafeteria for meals, instead eating only junk out of the vending machine just outside the lab. His roommate would go days without seeing him as he would simply snooze for an hour or so in the corner of the lab. He would even avoid showers until he stunk so bad he was dragged from the computer lab.
We tried everything. We tried to get him to go to class; he wouldn't. We tried to get him to get out and see a movie; he wouldn't. We even tried to get him to come to dinner with his girlfriend who he didn't even talk to anymore; he wouldn't. After about 4 weeks of this, we finally went to the dean of students and explained the situation. His network access was disconnected and the student psychologist and the dean paid him a visit. They gracefully removed him from his currently enrolled classes so his GPA wouldn't take a nose dive should he pull himself back together again, contacted his family, located a local therapist for him, and sent him home.
We all basically lost contact with him until he wrote his former girlfriend a year later and thanked us for doing what we did. He did eventually pull himself together and returned to school at another university. I don't know what ever happened to him after that.
Anyway, that's my story.