Our first glimpse of Sherlock Holmes and Dr. Watson is in their home office at 221b Baker Street in London. Watson examines a mysterious cane left in the office by an unknown visitor, and Holmes sits with his back facing his friend. Holmes asks Watson what he makes of it, and Watson declares that his friend must "have eyes in the back of [his] head," since he saw what he was doing. Holmes admits that …
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showed last 75 words of 710 total
…had seen the dog or hound outside of the office, which is how he knew its breed. Also, he had seen Watson in the silver coffee service, which is why he knew Watson was inspecting the cane, even though he was not facing him. Holmes is able to play these common observations off as the most brilliant of insights or even as part of a supernatural ability, showing that he is also conceited and egotistical.