Would a minute have mattered? No, probably not, although his young son appeared to have a very accurate internal clock. Possibly even 2 minutes would be okay. Three minutes, even. You could go to five minutes, perhaps. But that was just it. If you could go for five minutes, then you'd go to ten, then half an hour, a couple of hours...and not see your son all evening. So that was that. Six o'clock, prompt. Every day. Read to young Sam. No excuses. He'd promised himself that. No excuses. No excuses at all. Once you had a good excuse, you opened the door to bad excuses.

If there's one thing that really annoys a god, it's not knowing something.

Any true wizard, faced with a sign like 'Do not open this door. Really. We mean it. We're not kidding. Opening this door will mean the end of the universe,' would automatically open the door in order to see what all the fuss is about. This made signs rather a waste of time, but at least it meant that when you handed what was left of the wizard to his grieving relatives you could say, as they grasped the jar, 'We told him not to."

Do not meddle in the affairs of wizards because a refusal often offends, I read somewhere.

I would not like it thought that I do not buy my own paperclips, sir. I enjoy owning my own paperclips. It means they are mine.

Demons were like genies or philosophy professors - if you didn't word things exactly right, they delighted in giving you absolutely accurate and completely misleading answers.

The whole of life is just like watching a film. Only it's as though you always get in ten minutes after the big picture has started, and no-one will tell you the plot, so you have to work it out all yourself from the clues.