Just think how many books I could've sold if Harry had been a bit more creative with his wand." -[On the success of 50 Shades of Grey]

The idea of Dumbledore's corpse frightened Harry much less than the possibility that he might have misunderstood the living Dumbledore's intentions.

Devil’s Snare, Devil’s Snare . . . what did Professor Sprout say? — it likes the dark and the damp —” “So light a fire!” Harry choked. “Yes — of course — but there’s no wood!” Hermoine cried, wringing her hands. “HAVE YOU GONE MAD?” Ron bellowed. “ARE YOU A WITCH OR NOT?

Wonder what it’s like to have a peaceful life,” Ron sighed, as evening after evening they struggled through all the extra homework they were getting.

I find that discussing an idea out loud is often the way to kill it stone dead.

I expect what you're not aware of would fill several books, Dursely.

If all goes well, you will be able to save more than one innocent life tonight.