the firewalking bit baffled me too, they walked about 5 feet and i even knew as a child that if i ran my hand thru a fire at a moderate speed that i would be fine. if you walked on coals for a while, i would think you could easily build up a callus that would protect you for serveral steps. heck when i was a kid in the summer in georgia i would be able to walk barefoot on the blacktop roads about 10 times as far as my feet would allow me now...i have a friend who is a guitarist and when we go camping he moves coals around in the fire because his calluses are thick enough.
not saying anything against randi, just wondering if they caught him just being polite to the people and edited out his more critical remarks...