15 Times Professor McGonagall Was an Absolute Queen

"Dear Mr. Potter,

We are pleased to inform you that you have been accepted at Hogwarts School of Witchcraft and Wizardry. Please find enclosed a list of all necessary books and equipment. Term begins on September 1. We await your owl by no later than July 31.

Yours sincerely,
Minerva McGonagall, Deputy Headmistress"

Oh — McGonagall, Order of Phoenix member by night, casual deputy headmistress of Hogwarts by day.