Today is the day...

...that Santa traditionally fights the Yeti.

Things start out fine that morning.  They're the best of friends...

They play one-on-one ice-basketball...

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Yeti is even asked by Santa to eat the naughty children...

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But something inevitably goes wrong. Usually it's a simple misunderstanding.

Yeti accidentally blocks Santa's sled on his way out...

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 Which provokes Santa to get all MMA on Yeti.

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Yeti retaliates by removing Santa's head and dumping it in an open grave...

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And somehow the elves profit from it?

The picture does not lie: those inscrupulous, grave-digging elven deviants are clearly making good on the situation.

They're what's wrong with Christmas Eve, IMHO.