He's buggin your room,
He's reding your mail,
He's keeping a file
And runnin a tail
Santa Claus is tapping
Your phone

He hears you in the bedroom
Surveills you out of doors
And if that doesn't get the goods
Then he'll use provocateurs.

So you mustn't assume
That you are secure
On Christmas Eve
He'll kick in your door
Santa Claus is tapping
Your phone

(Supposedly written for and sung at a U.S. Department of Justice, Office of Legal Counsel, Christmas party during the Carter Administration.) --Eugene Volokh, UCLA Law