A picture is worth a thousand words

So is good iconography.  I keep my eyes out for interesting graphics, especially when traveling.  I saw this one in a bathroom stall in Vancouver, B.C. No words necessary.  Had never thought of doing this, but never-the-less am happy to know I shouldn't.

And yes, I did pull my camera out to get the photo.  There's probably a new graphic up there beside this one.