Whether it was the nog, the tannenbaum or just the good ol' spirit of the season - no one knows - but in late of December of 1938, the "nice Hitler" came out for an airing:
"Partly as a Yuletide truce and partly because most of them were suffering from severe frostbite, 18 'reformed Communists' and 7,000 Jews were released from concentration camps."
- from Amazon: