Hoo boy, a college roommate of mine got so hooked on that one that he became effectively nocturnal. To his credit, he was courteous enough to put his bedsheets down over the foot of his bed so the glare from his monitor didn't bother me while I was sleeping. I googled his name a while back and apparently he got his shit together, but that year was very worrying.
It kept out of bars and fights while I was in the Army... Except for that one time a guy wanted to fight me for not going to a bar with him because I was playing DAoC lol