Every intelligent being, whether it breathes or not, coughs nervously at some time in its life. - Terry Pratchett

Your average witch is not, by nature, a social animal as far as other witches are concerned. There's a conflict of dominant personalities. There's a group of ringleaders without a ring. There's the basic unwritten rule of witchcraft, which is 'Don't do what you will, do what I say.' The natural size of a coven is one. Witches only get together when they can't avoid it.

Some humans would do anything to see if it was possible to do it. If you put a large switch in some cave somewhere, with a sign on it saying 'End-of-the-World Switch. PLEASE DO NOT TOUCH', the paint wouldn't even have time to dry.

I asked a teacher what the opposite of a miracle was and she, without thinking, I assume, said it was an act of God. You shouldn't say something like that to the kind of kid who will grow up to be a writer; we have long memories.