Originally Posted by RogerMcAllen
One way glass is the same on both sides, whichever side is brighter becomes the mirror, and darker becomes the see through side.
If you went in at night and turned on the light (it must have a light inside), wouldn't the entire street be able to see you in all your glory?
But at least Switzerland has public toilets. In NYC, you have to go into a McDonald's and buy something from the dollar menu before they will give you the key to the restrooms.