My older brothers used to sing these to me as a wide-eyed, impressionable child:

Here comes Peter Cottontail,
Hoppin' down the bunny trail!
Hippity, hoppity, flop.

Oh, you better watch out,
You better not cry,
You better not pout,
I'm tellin' you why:
Santa Claus is dead.

(Perhaps this explains my years in therapy...)