Jim is right, I set an XGK on fire when the fuel tube wasn't properly sealed to the pump and the pump caught fire. It was on cutting board on a countertop and I put the fire out quickly with little damage, but a few more seconds and I could have had a full blown fire in my kitchen. So, no more testing indoors for me. Alcohol stoves, way safer.

When I was a kid, I set a coffee can about half full of gas on fire in my folk's garage-not intentionally. Put that out with a fire extinguisher.