The Christmas Train (Continued)

The elf mechanics are busy giving Santa's wheels a last minute maintenance check and have the right tools on hand to fix anything broken. Elves are good at this sort of thing. They have the hood popped open and the portable welder on full blast. The sleigh sports the latest in all-weather navigation, comm, and de-icing gear.

All proper trains should have a caboose, and Santa's is no exception. There's enough room in the cab for a pot bellied stove. The hot mulled win.. er...cider really warms the elves up.

Well, there appears to be one more car. Hmmm, havent seen a coal tender yet.
Looks like that might be one at the end there. Has somebody dropped their hat?

Ok, looks like we have a bad elf here.
What else would result in banishment to the coal car?
I wonder who it could possibly be?