I've been cleaning out the cellar for the past few weeks and can't believe how many flammables we work with. The gas water heater cycling on and off along with my wife using the dryer reminded me how much open flame is down there.
Several years ago a guy workin on his motorcycle in the basement leaked some gas, which ran under the water heater. Needles to say, as Tagger would say, "you'll blow yourself up," as he did along with his house.
Just for what it's worth.