O-Hashi - Chopstick
People claim Japanese, because many chopsticks in the Restaurant are used only once and afterwards thrown away.
Precious chopstick are made with lacquered wood and put on the chopstick rest to avoid to touch directly with table.
Chinese chopsticks are long, blunt and made with ivory.
We never know where is the enemy. Supposed guests may use a chopstick as weapon, so chopstick should'nt have sharp edge. And if meal poisoned colour of the ivory changes, so choopstick must be ivory.
Naive Japanese? Peaceful Japan ;-)