Happy Teacher Appreciation Week! Let's talk teachers. Why are the best lessons in the entire series taught by a supervillain? Why does Hagrid get to just like, introduce monsters and see what happens? Why doesn't everyone have to take arithmency, which seems like wizard math? Be honest, is astronomy really astrology, and if so, can I sign up? How does Ron know how to write his name? Why isn't there art class? Who in god's name put Albus Dumbledore in charge? Is anyone reviewing these lesson plans? Plus: Our favorite teachers, IRL.

This episode is dedicated to the memory of the inimitable and unforgettable Paul Lowes. Rest peacefully, pal.