Because Dec 25 = Oct 31
Hypothermia.
An oviposition set
Because they don't like random people knocking on their doors
He was going as a banana.
Because Dec 25 is Oct 31
Because OCT 31=DEC 25
Because OCT 31 is the same as DEC 25.
None, that's a hardware issue.
Because he couldn't commit.
Because DEC 25 = OCT 31
Give him sheet music
Tell him you belong to "the" 20%.