Which trade: aviation design, hoax explainer, or theatre? 
The flames are mostly figurative in hoax work. Aerospace and theater each involve a fair amount of potential for facial heat transfer from actual flames.
We use safety torches in the theater. These gadgets burn a Sterno-like gel fuel at low temperature, held in a metal cage. Holding the torch in standard "unruly mob" fashion holds open a spring-loaded cover. If you should happen to drop the torch for any reason, the cover is released and springs over the burning end to douse the flame immediately. The design flaw is that if you hit something hard with the torch, the momentum of the gel fuel can carry it through the holes in the cage, dropping little bits of flaming fuel onto surface below. That leads to unintended choreography as you try to stomp out the little flamelets.