A bezoar is a stone taken from the stomach of a goat and it will save you from most poisons.

...prefects will lead their house back to the dormitories.

When I call your name, you will come forth.

Now, before we begin...

Therefore, as punishment for your actions, 50 points will be taken.

Train's leaving. Go on. Come on, hurry up.

You don't want to go making friends with the wrong sort.

Can you imagine the look on old McGonagall's face if we were late?

A sorry lot, this, Hagrid.

Red hair and a hand-me-down robe? You must be a Weasley.

...gives a student the right to walk about the school at night.

I read about it in Hogwarts: A History.

- Norbert? - Yeah, well, he's gotta have a name, don't he?

And I have a few last-minute points to award.

She's a nightmare, honestly! No wonder she hasn't got any friends.

That's unicorn blood, that is. I found one dead a few weeks ago.

Fred gave me a spell as to turn him yellow. Want to see?

There was a time detention would find you hanging by your thumbs in the dungeons.

Hogwarts teacher or not, I know a spell when I see one. I've read all about them.

Maybe if the fat lump had given this a squeeze, he'd have remembered to fall on his fat arse.