Freaking NASA

The Air and Space museum on the Mall, on a tour of the Skylab module. Clearly, the greater mystery of space is "How do bathrooms work with no gravity?"
The display on our right seems to be entirely devoted to waste, waste recycling and disposal. A small piece of white fabric is marked "Towel restraining device." A couple is walking right in front of me. I hear the woman reading the sign out loud and she turns to her boyfriend with disbelief "Towel restraining device??? Freaking NASA!"
They both laught. Ah! To convey the beauty of space...