I am just going to this up here to anybody travelling to Japan who hasn't been before or who still doesn't know the rules and social faux pas. Very important - Do not carry weapons of any kind in Japan. Do not carry knives, guns, swords, home made weapons and so on, on your person. You will get arrested. + If you are carrying training weapons to and from training keep them concealed or carry them in a bag. DO NOT WHIP THEM OUT ON THE TRAIN. - The age of consent in Japan is 13 HOWEVER each prefecture sets their own age of consent. The age of consent in Tokyo is 18 (don't get any ideas - and shame on you). + If you are picking up girls make sure they are 18 or over. - Do not take things that aren't yours. Very bad in Japan. + Always double check before you throw it in your bag/jacket. - Do not walk out of a store without paying. + If you do go back and pay. - Don't be an ass + Always be respectful to everyone (Especially in training). Training is a privilege and not a right. - Do not leave your passport in your room/hotel. + If you go out, keep it in your jacket. - Do not get blind drunk/smashed/hammered/whatever your country calls it. + Drink in moderation. If anyone has anything to add please do so. These are just general guidelines, please observe them to keep yourself out of trouble. Do not make trouble, please.