‘I am a most superior person’

There’s an old definition of a gentleman: that he is someone who is never rude unintentionally. Rudeness, since then, has spread and spread, and 20 times a day we probably ask ourselves the same question which underlies these two books about contemporary manners. Do they mean to do it? Are they just bleeding ignorant, or does their rudeness reflect some kind of ethical conviction?

One example.