Smugness is an occupational hazard for the writer on etiquette. The exquisite Miss Manners, in Miss Manners’ Guide to Excruciatingly Correct Behaviour, describes the ‘wicked joy’ of her trade: ‘There is that pleasant bubble in the throat, the suppressed giggle at another’s ignorance; the flush of generosity accompanying the resolve to set the poor soul straight; that fever of human kindn ... (read more)