I was reminded of a toilet in a hotel room in Tokyo where I stayed on business four years ago. Not only a heated seat but little buttons for various water features. When I pressed the 'shower' one a little robot arm appeared from under the seat rim and sprayed water everywhere. If you weren't sitting on the toilet at the time it showered the bathroom floor. I had hours of fun.  I know these sort of things are more common now but at the time I had never seen anything like it. Any other