accio-shitpost:

fact: in the first chapter of philosopher’s stone, vernon dursley spots a cat reading a map, later said to be mcgonagall undercover

observation: mcgonagall is far too sensible and rational to let herself be seen doing something human while in cat form, especially if she’s spying on people

conclusion: mcgonagall did it deliberately to freak out vernon, she’s already noticed he’s an asshole