Flashes of Panic

There are two good reasons, I think, not to keep your hat on in the classroom. First, it’s rude to the instructor: you’re hiding your eyes from the instructor and making it hard for them to do what you’ve implicitly asked them to do.

Second, it’s rude to your classmates: it makes you artificially taller to any students behind you, making it harder for them to see the chalkboard and/or projection screen.

Take it off, or sit in the back.