I'm not talking about people who are purposely trying to look different, and I'm certainly not talking about people who are unhappy about getting treated as the gender they're trying to look like. (Wtf?) I'm talking about people who look enough unlike either gender that they aren't welcome in either bathroom. Either because they're in the middle of a transition, or because the transitioning treatments just haven't worked very well on them, or just because the only appearance they're comfortable with is somewhat in the middle gender-wise.