So Stapes conducted a dinner for just the two of us, then informed me of a dozen small but important mistakes I had made. Setting down a dirty utensil was considered crude, for example. That meant it was perfectly acceptable to lick one's knife clean. In fact, if you didn't want to dirty your napkin it was the only seemly thing to do.

The Wise Man's Fear: The Kingkiller Chronicle: (ed. Hachette UK, 2011) - ISBN: 9780575088078