13 Times Professor McGonagall Proved That She Is The Official Queen Of Sass!
9. When she confidently shook Gilderoy in Chamber of Secrets!
10. When she explains Harry how teachers can secure the castle in Deathly Hollows.
11. When Professor McGonagall sent Harry to his Potions class, along with a very excited Ron.
12. When she took sass to a whole new level in this scene from Prisoner of Azkaban!