@ FRA

I went to the JAL lounge at Frankfurt to kill time and stock up on munchies before boarding my flight yesterday. I always make sure to head to the lounge toilets right after the boarding call, as they tend to be much, much, much cleaner than the regular airport toilets.

And this is what was on the door:Yes, it's a full-page instruction on how to use the toilet. Washlet, as they're called in Japan. I didn't need to read the details on what each of the FIFTEEN buttons did, since these toilets are the norm in Japan. But I did for amusement.
Really amazing what the Japanese have created in the field of technologically advanced toilets. Seriously though, are these functions necessary?!?!?! My own toilet in my apartment comes with a washlet, but I've NEVER used any of the buttons, aside from flushing.

I've always wondered how non-Japanese people would react to these toilets when they first sit on one…do they push every button to test each function out? Or simply ignore all but the flushing one, which might take some searching and testing to find?
Any thoughts???