I've been reading some RPG message boards and one of the most common occurences seems to be problem players and how to deal with them. A general theme seems to be the act of kicking the players from the game, which to me seems a bit strange.
In 26 years I've only ever had to seriously address a player for their behaviour once. It was a game of WFRP and he was desperate to interpret certain skills to benefit his character. After a while I simply said, 'That's not how it's going to be done in the game, so like it or lump it.' We never saw him again, but as far as I'm concerned I never kicked him out - I gave him a choice and a chance and he decided not to attend.
Still, if I had ditched him from the game I wouldn't have felt that guilty about it, especially since his behaviour was being disruptive outside the game as well as during it.
I guess, even after all these years, I still see roleplaying as 'just a game'. I love it, I enjoy doing it, but I'm not going to get bent out of shape over problem players or generate bad feelings. There is no problem bad enough that a quick adult conversation can't cure.
Unless the guy's psychotic, then you just kick the freak to the curb and move house.