The idea of a see-through toilet is not exactly appealing to anyone trying to do their restroom business, but a park in Japan has implemented one that definitely stands out. Japanese Twitter user Yukio Otsuki (@yukio/homepage) recently discovered a public toilet that implements the idea quite...creatively.

The toilets, located in a park in Shibuya, are transparent and become opaque once a person locks the door. The system was implemented as a means of security and tracking crime that could take place in public toilets--but if you're a hardened criminal, wouldn't you just lock the door? Yukio also poses the question--"what happens if the device malfunctions?"--which is a very important question.

At the time of the video, the novel public restrooms were under construction, but this is what happens when someone tries to open the door from the outside.