The etiquette of intimacy is very different from the etiquette of formality, but manners are not just something to show off to the outside world. If you offend the head waiter, you can always go to another restaurant. If you offend the person you live with, it's very cumbersome to switch to a different family.
Judith MartinThe etiquette business has its emergencies, heaven knows, but it is in the nature of etiquette emergencies that once one realizes what one has done, it is too late. One might as well get a good night's sleep and send flowers with an apology in the morning.
Judith Martin