Ben Franklin left something important out when he made that comment on death and taxes.

"OMG you like to poop? Me too!" (via Thinkstock)

Every "relationship milestone" is bullshit, except for one: poop. It's a biological necessity, so it's something you'll always being dealing with during your relationship. But it's also a taboo, so the way you deal with it is indicative of how comfortable you are with your significant other. Thus, here are the 11 stages of poop in a relationship.

1. You don't talk about poop.

Every relationship has to start somewhere. You've just met someone, and you don't want to scare them off with the whole "I have a digestive system" thing before you even get to know them. Totally understandable.

Sources: Thinkstock