Dr. Watson walks into a room, and Sherlock Holmes instantly accuses him of hanging out in the club all day. “How did you know?” Watson asks. “A gentleman goes forth on a showery and miry day. He returns immaculate in the evening with the gloss still on his hat and his boots. Is it not obvious?” Holmes says. “Well, it is rather obvious,” Watson admits. “The world is full of obvious things which nobody ever observes,” says Holmes.