Don't cry milkribs...

an anus is a good thing.  Without anuses:

Buttsex would be no fun
We would have to wear diapers all the time
All farts would be silent
Your stash would just fall out
Chairs would be nasty

The mouth-anus digestive system is disgusting! We need to find a solution to solve this ASAP. Imagine if we could implant some kind of battery into humans... no more obesity, no more shitstained underwear...