Here are three things I learned about Japan from dating a Japanese woman once or a few hundred times.
1) You can legally walk down the street with an open beer.
2) It is okay to stand and read whole books and magazines in the shop without paying.
3) Each fire department has a special machine to cut off stuck rings from your hand if you can’t get it off.
Disclaimer: I’ve never been there, so they may have been goofing with me. 🙂