Do you watch Call the Midwife? I’m sure you know it features the same order of nuns who now live in this parish. In a favourite scene of mine, the redoubtable Sister Evangelina chides nurse Miller for buying dolly mixtures for the children. “Barley Sugar twists I said! Take all the jujubes out of there. They're everyone's favourite, and we don't want a riot on our hands.” Older and wiser, she understands that a sweet is a treat. A choice is a recipe for dissatisfaction. [...]