The Queen of the Shitter

One of the things you notice when you stop working at the sock stand at the mall and start working in the public restrooms is that different people come in.
 A spectrum of everybody, because everybody has to go to the bathroom sooner or later.
A man walked into these public toilets six months ago and hasn't been seen since.
 Or at least I haven't.
 Where do we go if we want to find out something? When can we just let things go?