Humiliate your opponent?

Humiliation how? Humiliating him over the board with your skillful play? Thats fine. Thats just being better. Vocally? Well thats not really humiliation to me, thats more of insulting (along with wearing headphones during a chess match, reading a book during the match, or just having that smug look on your face...Bah, besides the point). If you start taunting your opponent, thats insulting, which is not good simply from the sportsmanship aspect.

I like humiliating players that don't resign by promoting all my pawns to knights and mating them with the cavalry.

http://www.youtube.com/watch?v=OxBtrT_qZgI

Magnus enjoys  demolishing his opponents.

You have to break your opponents will to resist, drain their self confidence and belief.

Then be as nice as pie, that way they buy the beer.