Yet, sadly, accidental rudeness occurs alarmingly often. Best to say nothing at all, my dear man.

Be ruthless about protecting writing days, i.e., do not cave in to endless requests to have "essential" and "long overdue" meetings on those days.

It was strange how your brain could know what your heart refused to accept.

Makes a diff'rence, havin' a decent family,' he said. 'Me dad was decent. An' your mum an' dad were decent. If they'd lived, life woulda bin diff'rent, eh?' 'Yeah, I s'pose,' said Harry cautiously. Hagrid seemed to be in a very strange mood. 'Family,' said Hagrid gloomily. 'Whatever yeh say, blood's important.

Hogwarts is threatened!” shouted Professor McGonagall. “Man the boundaries, protect us, do your duty to our school!

Bad news, Harry. I've just been to see Professor McGonagall about the Firebolt. She – er, got a bit shirty with me. Told me I'd got my priorities wrong. Seemed to think I cared more about winning the Cup than I do about staying alive. Just because I told her I didn't care if it threw you off, as long as you caught the Snitch first.

Harry: "And what if I wave my wand and nothing happens?” Ron: “Throw it away and punch him on the nose.