““Are you afraid of the tigers? Do you hear them padding all round you on their fierce fine velvet feet? The speed of growth of tigers in the nightland is a thing which ought to be investigated some time by the competent authority. You start off with one, about the size of a mouse, and before you know where you are he’s twice the size of the Sumatra tiger which defeats all comers in that hemisphere. And then, before you can say Knife (not a very tactful thing to say in the circumstances anyhow), all his boy and girl friends are gathered round, your respectable quiet decorous docile night turns itself into a regular tiger-garden.””