As kids we had these Christmas jokes, given Santa's supposed name is Nicholas:
Knock, knock
Who's there?
Nicholas
Nicholas who?
knickerless girls shouldn't climb trees.
..............................................................................
Knock, knock
Who's there?
Nicholas
Nicholas who?
knickerless girls shouldn't do handstands in the playground.
...........................................................................................................................
Then there was the Santa walking down the street going 'ho, ho, ho'.
Got to the corner and three women beat the crap out of him.