Three Act Tragedy by Agatha Christie

....‘He’s a character,’ said Sir Charles. 

‘I’ve never met him,’ said Sir Bartholomew, ‘but I’ve heard a good deal about him. He retired some time ago, though, didn’t he? Probably most of what I’ve heard is legend. Well, Charles, I hope we shan’t have a crime this weekend.’ 

‘Why? Because we’ve got a detective in the house? Rather putting the cart before the horse, aren’t you, Tollie?’

 ‘Well, it’s by way of being a theory of mine.’ 

‘What is your theory, doctor?’ asked Mr Satterthwaite.

‘That events come to people—not people to events. Why do some people have exciting lives and other people dull ones? Because of their surroundings? Not at all. One man may travel to the ends of the earth and nothing will happen to him. There will be a massacre a week before he arrives, and an earthquake the day after he leaves, and the boat that he nearly took will be shipwrecked. And another man may live at Balham and travel to the City every day, and things will happen to him. He will be mixed up with blackmailing gangs and beautiful girls and motor bandits. There are people with a tendency to shipwrecks—even if they go on a boat on an ornamental lake something will happen to it. In the same way men like your Hercule Poirot don’t have to look for crime—it comes to them.’

--p 28