I pretty much agree with David. I think the fact that any of us are reading the thread means that we're at least semi interested in being respectful towards Japanese people on our trip there, and not doing anything stupid that will cause the Japanese to warp their visions of all tourists. In my opinion everyone has the right to be exposed to something that is a little different, without other people having to hover over them and wonder if their minds and cultures are being corrupted. I agree with David, I highly doubt a trip to Japan, especially from some of us, will change their fundamental way of life and culture or anything, especially if we're here trying to learn here how to respect that culture. So I think rather than telling us not to go or to limit our stay, I think it's more useful to advise us on what we should do and things like that.