Back in college
one of the professors made a comment that many strange phenomena- odd lights in graveyards, will-o-wisps and the like- were often the result of methane gas generated by things decomposing.

Therefore evil spirits are most likely methane.

And therefore I perform an exorcism every time I fart.
( The Resident Loon Not a demographic. Do not measure., Mon 17 Sep 2012, 12:45, 4 replies)

Human flatulence doesn't contain methane.
(feedingtimeatthezoo day 1 of his bikini diet started, Mon 17 Sep 2012, 13:52, closed)

Yes it does.
That's why fart lighting works. We don't produce as much as a cow, perhaps, but we do produce it. What makes them smell bad is skatole, a naturally occurring compound in poo.

There is also debate as to whether you're lighter after farting, or heavier- methane being lighter than air, it provides a miniscule amount of buoyancy. But is that buoyancy more than the weight of the methane? Inquiring minds want to know.
( The Resident Loon Not a demographic. Do not measure., Mon 17 Sep 2012, 14:59, closed)

Would that make them methylated spirits?

(moon monkey is busy making memories worth repressing, Tue 18 Sep 2012, 11:04, closed)

In which case you should say
"Out foul-stenched fiend!" whenever you break wind.
( e.m.m.y. foxtrot uniform charlie kilo india tango, Tue 18 Sep 2012, 16:47, closed)