Because Dec 25 = Oct 31
Because he was on the nautilust.
Very hungry.
The Fourth of Ghoul-ly!
Pump-kin
Because Dec 25 is Oct 31
Because Oct 31 = Dec 25
Because OCT 31 is the same as DEC 25.
A PDFile.
Because DEC 25 = OCT 31
Because all of it's Uncles were Aunts(Ants)