I've recently started living in Japan, and since I'm super busy here I have no choice but to often empty my cup in public restrooms. Anyone who has been to Japan has probably encountered those fancy Toto toilets that are in a lot of public restrooms. One of the functions is bidet. It would be so handy to use the bidet to rinse my cup in an inconvenient place like a public bathroom...is it recommended? I figure the cleanliness of the water has been approved for coming in contact with sensitive areas anyway...?