Harry Potter and the Philosopher's Stone2001

[Talking about Snape after the Quidditch match when he was accused of jinxing Harry's broom]

Hagrid:
Nonsense! Why would Snape put a curse on Harry's broom?

Harry:
Who knows? Why was he trying to get past that three-headed dog on Hallowe'en?

Hagrid:
Who told you about Fluffy?

Ron:
"Fluffy"?!

Hermione:
That thing has a name?

Hagrid:
Of course, he's got a name! He's mine! I bought him off an Irish feller I met down at the pub last year. The I lent him to Dumbledore to guard the–

Harry:
Yes?

Hagrid:
Shouldn't have said that. No more questions! Don't ask any more questions. That's top-secret, that is.

Harry:
But, Hagrid, whatever Fluffy's guarding, Snape's trying to steal it.

Hagrid:
Codswallop! Professor Snape is a Hogwarts teacher!

Hermione:
Hogwarts teacher or not, I know a spell when I see one. I've read all about them. You've got to keep eye contact and Snape wasn't blinking.

Harry:
Exactly.