I can honestly think of some times where flatulence
really could be humorous, most scenarios being of
the outdoors variety.
The short list of NFW! would be…a space suit, on your
first date with a person you have a crush on, a fully
loaded airplane at 25000 feet, a hot muggy day in a
car stuck in traffic, an open flame, and yes, in an
elevator with your boss standing right behind you!
Having said that, this is kinda funny…