I remember having to use the girls restroom on a grayhound bus:

I think its the same as the kids restroom, the old people's restroom, and the gay, lesbian, trans, queer, bisexual, Asexual and the restroom for fat big butt people from Kentucky. Its a weird feeling because when you're in there doing your business there's no one there with you. I though there would be at least someone asking me if I had a vagina or testicles. But no.