Another peculiarity is reportedly found in many Japanese
public toilets (or those in restaurants, etc.) for women: the
Sound Princess, a small electronic device that emits a
flushing noise when a button is pressed.
Why, you ask? To save water. Apparently, many Japanese women find the thought of other people even hearing them urinate or defecate terribly embarassing and try to avoid it by flushing constantly throughout the whole affair...