Any kind of social existence has its rules, its shibboleths, its unspoken ordnances and prohibitions, and at one level their enforcement is not so much an adherence to a snobideal as an understanding of how life works, an acknowledgement that most people prefer to associate with their peers and are either amused or fretful when taken out of their customary social milieu.

The New Book of Snobs (2016), Chapter 10