What NOT to do in Japan

Japan is an awesome place to visit, and no one should let "rules" get in the way of that! But Japanese culture can be very different to what we're used to at times, and some things we do that may be acceptable for us can be surprising and rude in Japan. My husband, Jun, and I put together a list of the most common things we see that can cause trouble (I speak from the perspective of having done all of these!) Mainly, this is if you plan on establishing yourself in a Japanese community through work/family--i