Why did Santa's elves go on strike at the North Pole?

They wanted to clause their contract and improve their working conditions, but it was a gift-wrapped ultimatum.

What did the gingerbread man put on his bed?

A cookie sheet

Why did Santa's elves start a North Pole union?

Because they wanted to clause for better benefits.

Why was Santa's little helper feeling depressed?

Because he had low elf-esteem.