The ABC Murders (Hercule Poirot, #13)

by Agatha Christie

You yourself are English and yet you do not seem to appreciate the quality of the English reaction to a direct question. It is invariably one of suspicion and the natural result is reticence. If I had asked those people for information they would have shut up like oysters. But by making a statement (and a somewhat out of the way and preposterous one) and by your contradiction of it, tongues are immediately loosened.