Japundit shot a video of a gadget called "The Magical Water Princess," which is installed in women's public restrooms to mask sounds of using the toilet.
[A] device called Oto-hime … makes a chirping sound when ladies use the toilet, because Japanese women hate the idea of anyone being able to hear any sounds they make while they go. Before the device was introduced in the 1980s, it seems that female patrons in restraunts would flush the toilet multiple times to mask the sounds, which wasted an incredible amount of water…
Here's a video of how they work. Just wave your hand over the button and the sound of water will come out of the device, allowing you to do whatever you need to do with without nervousness of people listening to the sounds you make.
