Only in Vegas
My new theory, it that there are not "mens" and "womens" restrooms, but only "pants" and "dresses" restrooms. I have not seen a sign on a restroom in years that says "mens" or "womens", they all have pictures. So, I have better justification for using the "dresses" restroom when I'm wearing a dress than anyone has for assuming that the sign is supposed to mean "women" when very few women wear dresses now.
Maybe I'll make a point of that if I'm ever in Vegas, it wouldn't bother me in the least to be banned from life from a casino.