The last thing I want happening to me in a public toilet is be seen by strangers while I handle my business, but people in Lausanne.
Relax though, if you behave inside, everything will be ok. This glass and steel structure features a voir button on the inside. The toilet windows are transparent when it is vacant, but turn opaque when someone enters and presses the button. Now, to prevent a person overstaying their welcome, the transparent toilet also has a motion sensor, and if it doesn’t detect any movement, for a long period of time, OR if it detects too much movement, the window turn transparent.
Talk about getting caught with your pants down, huh?