My Dragons
Looking too Hard
I think that when you start seeing sexism in the signs in the bathroom, you're taking it too seriously.
At work, they have these little signs pasted to the insides of the stall doors; you've probably seen the sort of thing: it starts out as a quote from a famous book, then moves into "why bad things happen if you don't wash your hands after peeing". What I find interesting is which books they used and who the characters are who're at fault.
The A Tale of Two Cities ripoff has generic people who made it "an unsanitary period" by simply not washing their hands, no other qualifiers given. Moby Dick has the whalers forced to refrain from washing due to lack of fresh water; Treasure Island features a "savage" who doesn't do the right thing and spreads disease to the whole crew. But then we have The Wizard of Oz, with Aunt Em who plain forgets to wash her hands, and Scarlett O'Hara who "frivolously" neglects to.
So we have unspecified people who just don't, a "savage" who doesn't (never having been taught to, one imagines), men forced not to, and one forgetful woman and one frivolous one. I dunno, I think I'm reading way too much into the whole thing. But I think it says something about the nature of my job that I'm getting speculation and entertainment out of the issue...