Transgender dilemma #7883: an inevitable consequence of visual statistical learning and expertise is that men are better judges of masculinity and women are better judges of femininity. The corollary is that there is an inevitable point in transition where men judge you to be a woman and women judge you to be a man, especially around the bathroom, where category boundaries matter. If your goal is to minimise everyone's discomfort, which bathroom do you use? Any suggestions, Miss Manners?