When I started grad school a few months ago, I was delighted to find that all the restrooms in the Humanities building have chalkboards in each stall. Presumably it’s a technique intended to cut down on actual graffiti, and it seems to work: Though the chalk is long gone and the messages are mostly in marker, those messages on the chalkboard, and the stalls’ walls, remain pristine (for some definition of the word pristine that includes surfaces sprayed nearly continuously with microscopic drops of toilet water).
Here are a few:
Lady 1: Well-behaved women rarely make history. Lady 2: self-hatred [with an arrow pointing to the strikeout] Ah, the [...]