Japanese Bathroom Joke

While I was organizing the presentation for tomorrow, I suddenly thought of this clip from way before when I was in high school in Taiwan. I remember I watched the video clip long time ago how Japanese made fun of people by renovating public restrooms into a machine that shows all the motions need to be done in the restrooms. (lol) I thought this could be a very interesting precedent in our project. However, I don't think this clip should be appropriate to be presented in our class presentation. So, I just share it here. It's in Japanese with Chinese subtitles though.