In the light of our recent discussions about transgender bathroom usage, I did a bit of research. Some of it was serious. Some of it, typified by this 4chan graphic representation of sexual preference/orientation/whatever, is less so. Click the image for a larger view. (A tip o' the hat to Claire Wolfe for the link.)
There's only one way to describe that chart, courtesy of Sir Walter Scott:
When first we practise to deceive!
(Self-deception being the first and most predominant, of course . . . )