Have you ever wondered why a Christmas tree often has an angel at the top?

One day Santa was having a bad day. The elves drank all his eggnog and the reindeer ate his cookies. To top it off, Mrs. Clause threw his special pipe in the fire.
As he was sitting there reading the lists from the girls & boys, there was a knock at the door. It was a little angel with a Christmas tree, she asked "where do you want me to stick this tree old fat man?"