If you’re one of those “Other” weirdos, you need to explain why.
Oh wait, I am one of those “other” weirdos! Back when I was a kid I spent most of my Christmases with my grandparents in France, and one of the things we had every Christmas eve was oysters. Yes, raw and squiggly and doused in lemon. I actually like oysters, though I’ll admit I don’t like to watch (or think about) the squiggliness, and oysters have always been associated with Christmas eve for me and not with, uh, more horizontal pursuits.
The main course part varied, as far as Christmas day goes. Some years turkey, some years ham, some years other stuff like the venison my cousin made which was the only time I’ve ever had it, and tasted yummy even if it did come from Bambi.