Meet Krampus, St. Nick's evil companion of traditional Alpine mythology. According to Wikipedia, the freaky tradition was particularly popular with the Austrian Nazi-allied fascists, circa mid-1930s:
"According to legend, Krampus accompanies St. Nicholas during the Christmas season, warning and punishing bad children, in contrast to St. Nicholas, who gives gifts to good children.
In the Alpine regions, Krampus is represented by a demon-like creature. Traditionally, young men dress up as the Krampus in Austria during the first two weeks of December, particularly on the evening of 5 December, and roam the streets frightening children with rusty chains and bells.
In the aftermath of the Austrian Civil War the Krampus tradition was a target of Austrian Fascists allied with Nazi Germany."