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.

Sometimes, if she simply remained quiet, and let the inadequacy of his excuses reverberate on the air, he became ashamed and backtracked.

With all of their benefits, and there are many, one of the things I regret about e-books is that they have taken away the necessity of trawling foreign bookshops or the shelves of holiday houses to find something to read. I've come across gems and stinkers that way, and both can be fun.

"Well, we were always going to fail that one," said Ron gloomily as they ascended the marble staircase. He had just made Harry feel rather better by telling him how he told the examiner in detail about the ugly man with a wart on his nose in the crystal ball, only to look up and realize he had been describing the examiner's reflection.

I don't think I am evangelical in my work.

My daughter Jessica said to me recently, who wasn't sorted into Hufflepuff, 'I think we should all want to be Hufflepuffs.' I can only say to you, I would not be disappointed at all to be in Hufflepuff. I'm a little upset anyone does feel that way.

I am not trying to influence anyone into black magic. That is the very last thing I'd want to do.