Harry witnessed Professor McGonagall walking right past Peeves who was determinedly loosening a crystal chandelier and could have sworn he heard her tell the poltergeist out of the corner of her mouth 'It unscrews the other way.

I would assume that you were going to offer me refreshment, but the evidence so far suggests that that would be optimistic to the point of foolishness.

The elf’s eyes found him, and his lips trembled with the effort to form words. ‘Harry... Potter...’ And then with a little shudder the elf became quite still, and his eyes were nothing more than great, glassy orbs sprinkled with light from the stars they could not see.

Just because you’re allowed to use magic now you don’t have to whip your wands out for every tiny little thing!

Decent people are so easy to manipulate, Potter.

Someone creeping into his yard in the dead of night? More likely there's a very shell-shocked cat wandering somewhere, covered in potato peelings.

Everything was curved to fit the walls: the stove, the sink and the cupboards, and all of it had been painted with flowers, insects and birds in bright primary colours.