There's a time and a place for getting a smart mouth.

But this is touching, Severus,” said Dumbledore seriously. “Have you grown to care for the boy, after all?” “For him?” shouted Snape. “Expecto Patronum!” From the tip of his wand burst the silver doe. She landed on the office floor, bounded once across the office, and soared out of the window. Dumbledore watched her fly away, and as her silvery glow faded he turned back to Snape, and his eyes were full of tears. “After all this time?” “Always,” said Snape.

It was so good to be held. If only their relationship could be distilled into simple, wordless gestures of comfort. Why had humans ever learned to talk?

There's nothing better when something comes and hits you and you think 'YES'!

It's best to know what the enemy are saying.

Professor Snape was forcing them to research antidotes. They took this one seriously, as he had hinted that he might be poisoning one of them before Christmas to see if their antidote worked.

No, thanks," said Harry. "The toilet's never had anything as horrible as your head down it— it might be sick." Then he ran, before Dudley could work out what he'd said.