Duke Malagigi
Barbarian in the Playground

That sort of person is not worthy of being a Game Master of any sort. The GM is there to entertain and bring enjoyment to the player group, thus being entertained and enjoying himself likewise. Soneone that finds pleasure in making others unhappy is a sad case indeed. That kind of GM should be left alone to lurk in online MMP games to ambush newbies' characters as they enter the setting :]

Cheers,
Gary