Hey you know what else we should watch?

Where the wild things are

Also, did you know that in 1878 on May the 2nd in Minnesota in a Wheat Flour mill, a spark ignited air-bourne flour dust within the mill causing an explosion that wiped out the seven story washburn mill and other nearby mills which killed 18 people? It was known as the great mill disaster.

So instead of using petrol or other flammable gases and liquids, you could use flour to start an explosion...