If you've got an acetyline torch, heat the plug until it's red, and apply a wax candle or a block of parrafin sealing wax to it. Then just grab it with vise grips and turn it out. This procedure works even if you can't get it red. Use a Propane torch and get it as hot as possible, then apply the parrafin. Don't worry about melting or cracking the block- - -the heat conducts away from the plug in a hurry.
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!