Let's talk about bottoms.

[den]

How does it work? How does it sort out what comes out and what stays in? You have layers in your intestine, like this:

Gas
Liquid
Solids
valve

How does the bum let the gas out without letting anything else out?






I now have a supply of dried apricots and ginger for all my munchie needs. This might be why I'm thinking about my bottom.