another custom: "the soya sauce is not intended to pour it over the rice"... why not? will the waitress (chinese restaurant) look at me if i do it?
really, it seriously bugs me. however, luckily they are really not taking/excepting a tip. it tooks me months to find a suitable restaurant...
and i am going to write "japanese people do not easily get direct/personal". if foreigner collect such informations, it is a so-called "pseudo science"...but it means much to me.
what about "hell money" in japan? the chinese have these notes for combustion purpose, and never use to give them to another person. the people just don't do it, it is not usual.