You are not allowed to break more than three dishes per day, or chip the edges of more than four cups and/or saucers.

Dishes must drip dry.

By law, any person operating a Fish and Chip shop must provide Deep Fried Mars Bars as part of their menu.

It is illegal to cook Fugu (Blow Fish) for more than 80 seconds. Fugu contains deadly poison in the organs. Despite of the risk, fugu dishes are considered special feasts in Japan.

Throwing stones is prohibited as it might break a window.

It is against the law to attempt to break any law in title 9 of the code (public peace, morals, and welfare).