Marginal vs Full Cost

Gregory (Scotland Yard detective): “Is there any other point to which you would wish to draw my attention?” Holmes: “To the curious incident of the dog in the night-time.” Gregory: “The dog did nothing in the night-time.” Holmes: “That was the curious incident.” That’s an excerpt from Sir Conan Arthur Doyle’s “Silver Blaze,” a Sherlock Holmes novel, and it highlights […]