As if you didn't have enough to do in the water closet, visitors to this restroom in Lausanne, Switzerland, have one added step: they must actually press the "voir" button to get a little privacy in this otherwise transparent structure. The walls are constructed with liquid crystal glass that becomes see through under electric tension -- which can be triggered via motion sensor, in case all motion ceases for a period of time (napping is not allowed) or if there is too much activity (partying is definitely not allowed). What do you think: Is this a stylish and innovative alternative to the ugly plastic porta-john? Or a disaster waiting to happen? Video after the break.