Here's a picture of a public toilet in Switzerland that's made entirely out of one-way glass. No one can see you in there, but when you are inside, it looks like you're sitting in a clear glass box.
Now that you've seen the outsideview, take a look at the insideview...
It's made entirely of one-way glass! No one can see you from the outside, but when you are inside it's like sitting in a clear glass box!
Now would you... COULD YOU... use it?