What if the reason muggles believe Santa Claus comes through the chimney to give them gifts is because one time, many years ago, when Santa Claus was more known as Father Christmas, a drunken wizard accidently teleported through the Floo Network right into a muggle house on Christmas Eve? A short drabble in the holiday spirti.

Robert and Isobel McGonagall are very excited for their firstborn’s birth, but very soon after their daughter, Minerva was born, a crisis arrives and disturbs their happiness: Minerva is a witch just like her mother, but her father, who is a muggle, has no idea…