An employee of Japan's housing company Daiwa House checks ...

(AFP/File) - An employee of Japan's housing company Daiwa House checks the electronic display of the "Intelligent Toilet" in Tokyo. Japanese toilets have long and famously dominated the world of bathroom hygiene with their array of functions, from posterior shower jets to perfume bursts and noise-masking audio effects for the easily-embarrassed.(AFP/File/Kazuhiro Nogi)