The Japanese have a strange concept of humor. It must be because of the lack of land available for living on or all the anime that is over there. Whatever it is, it produces this:
TV crew sets up a porta-loo (toilet) at popular locations in Japan and booby traps it with a uplifting surprise! Users get caught absolutely off guard with the ten second trap… Absolutely hilarious!!!A must see is at the end of the video, where a fast boat trip absolutely finishes off all the poor victims!
I mean, if you did this in the US you would become lawyer fodder faster than you can say whiplash.