Well from what I've experienced, and know about the Japanese culture is that they're very collective as a people. as opposed to the individualistic nature of the US, UK, and most of Europe. Showing strong negative emotion causes them to lose face, because it's just not the done thing. Apparently, when kids are involved, there are very, very few separations/divorces.
Last night in my Japanese class, my tutor said that Japanese homes are very easy to break into, because people just wouldn't consider breaking in. She said that generally, a Japanese person would not steal from someone else, because he/she would be completely disowned and outcast by all of their family and friends. Apparently most of the crime in Japan is committed by foreigners.
I went off on a little bit of a tangent, but I find this all very interesting and wanted to give a little insight into how different their mentality is to ours.