Hermione: Beautiful day.
Ron: Gorgeous. Unless of course you've been ripped to pieces.
Harry: Ripped to pieces? What are you talking about?
Hermione: Ronald has lost his rat.
Ron: I haven't lost anything! Your cat killed him!
Hermione: Rubbish!
Ron: Harry, you've seen the way that blood thirsty beast of hers is always lurking about. And now Scabbers is gone!
Hermione: Well maybe you should learn to take better care of your pets!
Ron: Your cat killed him!
Hermione: Did not!
Ron: Did.
Hermione: Didn't.