few months ago you told Papyrus about a human holiday Christmas, you told him that each culture celebrates it either differently or they have their own holiday it's few days before Christmas Papyrus is reading a children's book about Christmas holiday and Santa Claus and running around the house, decorating it

"SANS! WHERE ARE THE SOCKS?!" Papyrus yells from the attic

"..Heh.. I dunno Paps.. maybe the sock elves took them as blankets." Sans chuckled and remained sitting on a bean bag