What's weird is that this is a women's bathroom.
Really, at this point just go the extra inch and add the 's.
Which is more disconcerting: that they had to specify it's for women only, or that "only" is in quotes.
You know that's a sigma, which is an S, so you've barely defaced our fraternity at all.
I don' t know about you, but I've been waiting forever for a Simpsons/Bones crossover.
Found this sign in a bathroom...