" For instance, he had a habit that poor Amy had a lot of trouble to break him of : after he’d finished his meat and vegetables he’d take a piece of bread and wipe the plate clean with it and eat it.” “Do you know what that means?” I said. “It means that for long he had so little to eat that he couldn’t afford to waste any food he could get. "

― W. Somerset Maugham , Cakes and Ale