Visions of sugarplums seem to plague the Flames in contests just before Christmas, where their winning percentage is only 33.3%. One could also infer that turkey leftovers are a more effective pre-game meal for the Oilers than the Flames, as Edmonton has won 70% of Battles of Alberta played immediately after the holiday.

https://oilersnation.com/2019/12/27/game-preview-41-0-edmonton-oilers-vs-calgary-flames-7pm-mt-snw/