Troep.com

Hermione: Come on, everywhere else is full.
Ron: [sees Lupin] Who do you think that is?
Hermione: Professor R.J. Lupin.
Ron: Do you know everything?
[to Harry]
Ron: How is it she knows everything?
Hermione: [annoyed] It's on his suitcase, Ronald!
Ron: Oh.
- Harry Potter and the Prisoner of Azkaban (2004)