What is the gas in human poop that smells

This is a Joke question but I do kinda wanna know, let me know if I'm right is it methane

I'm pretty sure it's just methane, same things in cow farts/poop.

21% Percent hydrogen

9% carbon dioxide

7% methane

and 4% oxygen.

what makes it stink however is found less then 1%. its called Hydrogen sulfide gas, or mercaptons which contains sulfur, the sulfir is what makes the gastric release (fart) stink.