Redsy,
I've seen this happen too, on more than one occassion, one guy even set his hair on fire, doing it!.
Sparkync, thanks for the idea, it's a good'un! and the delivery was even better.
I once caught a young apprentice trying to bend a piece of 2" conduit with a blow-torch, with the PVC wires already inside it, and man did he come in for a caning(figure of speech).