Now that we know methane is an odorless gas, let's ask ourselves if methane is even a component of a common fart. Is that a misconception too? In this case it is NOT a misconception. A human fart has methane as a common component. The most common components are oxygen, nitrogen, carbon dioxide, hydrogen, and methane. In fact, 99% of a fart is composed of non-smelly gasses. It's that 1% that causes everyone to run from the room screaming. That 1% consists of sulfur compounds.
I know you've enjoyed reading this post (LOL!) and now you are knowledgeable regarding farts. Be sure to use this new found knowledge for good in the world. :-)