Re: OK, I'm inclined to think it's just stupid, not evil
Petrol, not diesel
Diesel, not petrol.
Diesel actually doesn't set light with a torch
This video disagrees with you. That's the first one I found - having done similar myself, I knew there was bound to be one.
Petrol has a tendency to conflagrate and burn your face off. Diesel, with its much higher ignition temperature and lower volatility, is somewhat safer in such situations..
Vic.