Start A Fire. A Massive Fire
Contrary to popular survivalist opinion, there’s actually no such thing as too much petrol when making a fire. Douse your flammable liquids haphazardly, ensuring that every bit of the surrounding area gets a splash or two.
Your pyromaniac ancestor, Calvin the Caveman, didn’t waste his time making small scented candles. He was a man, and he made fire.
If you’re feeling especially chilly, why not start an uncontrollable forest fire? You’ll find this idea to be particularly effective if the ground is dry and it hasn’t rained for a week.