In medieval times the Japanese used to dye their teeth black. It also acts as a dental sealant to prevent tooth decay. The reason for this was objects that were pitch black, such as glaze-like lacquer, were seen as beautiful.
One of the most sacred shrines in Japan is torn down and rebuilt every 20 years. This has been going on for over 1,000 years, and some records indicate it may have started 2,000 years ago.
A UK customs officer tried to get rid of his wife by waiting until she had gone abroad – and then entering her name into the “Do-Not-Fly List”. She was stranded abroad for 3 years.
Apollo 11 astronauts had to declare moon rocks through customs upon return to Earth.