Hermione: Look at you playing with your cards. Pathetic! We've got final exams coming up soon.
Ron: I'm ready! Ask me any questions.
Hermione: All right, what's the three most crucial ingredients in a Forgetfulness Potion?
Ron: I forgot.
Hermione: And what may I ask do you plan to do if this comes up in the final exam?
Ron: Copy off you?
Hermione: No, you won't! Besides, according to Professor McGonagall, we're to be given special quills bewitched with an anti-cheating spell.
Ron: That's insulting! It's as if they don't trust us!