If you really want to upset a witch, do her a favor which she has no means of repaying. The unfulfilled obligation will nag at her like a hangnail.
Terry PratchettI must confess the activities of the UK governments for the past couple of years have been watched with frank admiration and amazement by Lord Vetinari. Outright theft as a policy had never occurred to him.
Terry PratchettI don't read an awful lot of fiction and when I do, it tends to be lightweight stuff.
Terry Pratchett