Back in the day, gas is what we used to clean our chains, and bearings.....I am talking 70's. The BMX days. Well I cleaned my chain, crank, and wheel bearings, and once done found I had a nice set of matches in my pocket. Since fire is cool I tossed a lit match into a 1/2 gallon container of the gas. Afterwards, I realized maybe it was not such a good idea to do so close to the house and kicked it. I don't need to say what happened next. I'll end it by saying I still have a huge scar on my ankle, and have no feeling where it was burned the worst. Also spent 72 days in the hospital.