Dude, I'm going transgender!
How'd YOU like it if some usually-well-behaved WOMAN decided to dress like a MAN and ogle (or laugh at) YOU in YOUR bathroom??? PLEASE... we have enough genuine perverts out there without us straight and normal people pretending to join them! Besides, it's too clean and perfume-y in a ladies' restroom for a straight fellow to feel comfortable there.
You have been warned.