Please tell me you understand all these. 
Pressing the wrong button on a piece of technology is a rite of passage . 
Pressing the wrong button and having streams of water pour hell-for-leather toward your nether regions is, sadly, a rite of passage in some of Japan’s most high-tech restrooms. 
It’s not been easy for foreigners to decide which button does what in toilets that go far beyond the standard flush . 
The nation’s sanitation industry has, therefore, pulled together to get foreigners out of the mess they’ve been creating. 
The Japanese Restroom Industry Association has just emitted a press release in which it announced a standardization of the often complex and contradictory signs that have adorned its toilets. 
The toilets we’re talking about aren’t the usual basic things.