9. After the King finishes his meal, no one is allowed to eat.

Reason: Being respectful is regarded as a component of proper meal etiquette.
Exception: None
A formal supper comes with a long list of royal rules. Although spending time together around the table as a family may seem informal, the Royal family does not operate like that. When dining with King Charles III, for instance, nobody can begin eating until he does.

After the King finishes his meal, no one can eat. ©Chris Jackson/Getty Images
Similarly, no one, whether it be a ten-course dinner or takeout from KFC, can eat after he has finished. Tasting Table claims that even when the late Queen was stuffed, she would move her food around on her plate to give others a chance to eat.