"A cat's Christmas" joke

'Twas the night before Christmas
and all through the house
Not a creature was stirring,
not even a mouse.
' Cuz the cat had pounced on him
and tore him apart-
Ate his mousey intestines
And chewed up his heart.
Kitty thought he heard sleighbells,
which made him take pause-
He stopped daintily licking
the blood from his claws.
"Must be Santa" thought Kitty
(that quite clever cat)
' Cuz nobody else climbs down
the chimney like that.
Indeed it was ol' Santa,
so jolly and fat
With a load of presents
and all for the cat!
"Wow, the best Christmas ever!"
Kitty thought with a purr,
Then he coughed up a hairball
and shed some more fur.
(Thanks to IrisMist)