the dry cleaners guilt

So, I'm at the dry cleaners the other day and the big sign on the door reads:

WE RECYCLE HANGERS.
BRING BACK YOUR HANGERS.

I am such a sheep. I now have this major guilt case thinking I really need to go through all my closets and bring back all the empty hangers. After feeling guilty the last two times I went and did not bring in any hangers, I thought to myself. Well, I guess it's a good thing the sign didn't read something like this:

WE RECYCLE BILLS.
BRING BACK ALL THE DOLLAR BILLS YOU HAVE.

or

WE RECYCLE CHILDREN.
BRING BACK ALL THE EXTRA CHILDREN YOU HAVE.

or

WE RECYCLE TITLES.
BRING BACK ALL THE TITLES YOU HAVE.
WE PREFER REAL ESTATE AND VEHICLES.