It is a widespread and firm belief among guests that their departure is always a matter of distress to their hosts, and that in order to indicate that they have been pleasantly entertained, they must demonstrate an extreme unwillingness to allow the entertainment to conclude. This is not necessarily true.

When people start hurling insults at you, you know their minds are closed and there's no point in debating. You disengage yourself as quickly as possible from the situation.

It is said that dispensing advice is easy. What is difficult is getting anyone to listen to it.

the obligation to express gratitude deepens with procrastination. The longer you wait, the more effusive must be the thanks.

It is wrong to wear diamonds before luncheon, except on one’s marriage rings. Before, after, and during breakfast, luncheon and dinner, it is vulgar to wear a mixture of colored precious stones. It is always a comfort to know that so many things one can’t afford to do anyway are vulgar.

Whamming someone smaller than oneself in order to teach that person civilized behavior is not within Miss Manners' concept of propriety, much less logic.

Etiquette is about all of human social behavior. Behavior is regulated by law when etiquette breaks down or when the stakes are high - violations of life, limb, property and so on. Barring that, etiquette is a little social contract we make that we will restrain some of our more provocative impulses in return for living more or less harmoniously in a community.