It's never too early to start thinking about Krampus, the dark side of Santa (or Saint Nicholas, as in this photo from Austria).
Santa brings goodies in a sack, Krampus puts you in the sack.
For parents, Krampus was a useful bogey: "Be good, or else Krampus will carry you off!" Krampus was especially useful during long, cold winters in remote villages where children were cooped up in the house for weeks at a time and adults struggled to get them to behave. Was it cruel to warn them that Krampus would come and punish them? To reinforce the fiction of Krampus, masked figures would appear in winter parades. They visited homes to ask parents which children had been naughty and which had been nice. That way, parents could defend their children from Krampus and play the good guy.
I am a children's author and folklorist based in Portland, Oregon. Before I became a full-time writer and speaker, I was a children's librarian, then a puppeteer and storyteller. I received my Ph.D. in Folklore and Mythology Studies from the University of California, Los Angeles.