While I was studying Japanese, I learned that they go out of their way to make it so the other person doesn't have to refuse with a "no". For instance, they'll ask, "Do you not have X?" instead of "Do you have X?" The person can answer "Yes, we don't have it" or "It's over here".
I actually made this mistake, asking for a product directly instead of negatively, when I was in Tokyo. The clerk took me to the aisle and said, "If we had it, it'd be here." And there was no space for it. Took me a couple times to realize what had happened.
I actually made this mistake, asking for a product directly instead of negatively, when I was in Tokyo. The clerk took me to the aisle and said, "If we had it, it'd be here." And there was no space for it. Took me a couple times to realize what had happened.