The High-Tech Toilets of Japan
Rinse your butt, adjust the water volume, temperature & nozzle position, women's wash, deodorizer, air-dry and now even a privacy button (?!). Turns out the last one is to emit some loud sounds to mask other ones that you might be embarrassed about, so you don't have to resort to coughing and flushing anymore. Crazy Japanese think of everything.