This sign belongs to McGuires Irish Pub in Pensacola. They got in big trouble for this a long time ago, so there is a curtain behind the men's room door, whichever one it is.
A legit bathroom sign.
Found at @codehostel, a geek hostel in Edinburgh.
Many women may chose the wrong door.
This establishment is hoping for a Close Encounter of the Third kind.
Beer Vs Martini sign by Liquid Agency.
NC16 Toilet sign.
A gender neutral restroom, or as one commenter said, a "bothroom."
Farts and makeup... these signs pretty much sums up what men and women do inside.
Toilet signs at a bowling alley.