Besides, they don't have grass in Oklahoma - just dust.

And just for the record... When I was a kid my dad used to use an old fuel can (Metal can) as a gas can. One day I had to mow the lawn. There was only about an inch of gas in the can, so I went up to the local gas station and for 25¢ I filled the can with gas (Ah, the good ol' days)

Well, it turns out that 1" of gas at the bottom was glow fuel.

The lawnmower ran fine for a little while, but after a few minutes the muffler started blowing some smoke. A few seconds later the smoke got THICK! and just about the time the mower disappeared in the smoke cloud, the muffler started spitting out flames.

One flame about 8 inches long for every combustion cycle. Scared the bejesus out of me!