Hogfather - Find

'Drat,' said Susan.

'That's a very unusual swearword,' said the oh god nervously. 'It's so easy,' said Susan. 'If I want to, I can find anybody. It's a family trait.'

'Oh. Good.'

'No. Have you any idea how hard it is to be normal? The things you have to remember? How to go to sleep? How to forget things? What doorknobs are for?'

***

Hogfather - p212