I have, perhaps, too professional a point of view where deaths are concerned. They are divided, in my mind, into two classes — deaths which are my affair and deaths which are not my affair — and though the latter class is infinitely more numerous — nevertheless whenever I come in contact with death I am like the dog who lifts his head and sniffs the scent.

Yes, a private investigator like my Wilbraham Rice. The public have taken very strongly to Wilbraham Rice. He bites his nails and eats a lot of bananas. I don't know why I made him bite his nails to start with — it's really rather disgusting — but there it is. He started by biting his nails, and now he has to do it in every single book. So monotonous.

But how much are the delicate convolutions of the brain influenced by the digestive apparatus? When the mal de mere seizes me I, Hercule Poirot, am a creature with no grey cells, no order, no method — a mere member of the human race somewhere below average intelligence!