Who is the who who is the who?

You two were the two who were the two!

Every day, I walk past the same squashed squirrel in the parking lot on my way to work. Every day, it gets a little flatter, and looks a little more like a circle of furry leather. Everyday, I can smell it a little more on the breeze. It occupies an entire parking space, because who wants to park in the space with the flat smelly circle of leather?
So my question is this: Who is responsible for cleaning up road kill (or, uh, parking lot kill)? And who is responsible for telling that who about the parking lot refuse?
Who is the who who tells the first who what to do?

It is a dilemma.