Farts are flammable.
Farts are created mostly by E. coli.
On the average a fart is composed of about 59% nitrogen, 21% hydrogen, 9% carbon dioxide, 7% methane, and 4% oxygen. Less than 1% is what makes them stink.
SCUBA divers cannot pass gas at depths of 33 feet or below.
Excess gas in the intestinal is medically termed "flatulence."