re: #7 Mostly sane, most of the time.

As I understand it, Nuns in the Catholic schools use rulers on people’s knuckles as a form of discipline.

It’s a threat. Kind of like the horse head from Godfather.

The Nuns really aren’t in Catholic schools much anymore these days but they most certainly used them when my Dad went to Catholic school as a kid. A kind of weird anecdote but he’s the only of his six siblings not to graduate from Catholic school but also the only one not to have a divorce.