Fart Fact 2

Only 1% of your fart actually smells! Even that little SBD you sneaked out that had everyone in the room wondering if the sewage works had broken down, even that was 99% of that was odourless gases like carbon dioxide, hydrogen, nitrogen, oxygen, and methane. The 1% that smells is hydrogen sulphide and when you consider just how bad farts can smell it should come as no surprise that hydrogen sulphide is poisonous. It was even considered as a poison gas during WW1 but was too easily detected (the smell, of course).

“Malcolm’s just caused a major pollution event.”
“Let another one go has he?”
“He must be producing more than 1%, it’s contradicting Fart Fact 2!”