When four of Santa's elves got sick, and the trainee elves did not produce the toys as fast as the regular elves, Santa was beginning to feel the pressure of being behind schedule.
Then Mrs. Claus told Santa that her mother was coming to visit. This stressed Santa even more.
When he went to harness the reindeer, Santa found that three of them were about to give birth and two had jumped the fence and were out, heaven knows where. More stress.
Then, when he began to load the sleigh, one of the boards cracked and the toy bag fell to the ground and scattered the toys.
Frustrated, Santa went into the house for a cup of apple cider and a shot of rum. When he went to the cupboard, he discovered that the elves had hidden the liquor, and there was nothing to drink.
In his frustration, Santa accidentally dropped the cider pot, breaking it into hundreds of little pieces all over the kitchen floor.
He went to get the broom and found that mice had eaten the straw end of the broom.
Just then, the doorbell rang and irritable Santa trudged to the door. He opened it, and there was a little angel with a great big Xmas tree.
The angel cheerfully said, "Merry Christmas, Santa. Isn't it a lovely day? I have a beautiful tree for you. Where would you like me to stick it?
And thus began the tradition of the little angel on top of the Xmas tree.