Once Holmes was visited by the person with a request for help. He was in a worn suit, a shirt with shabby cuffs and an old top head on his head. Holmes refused to help him. When the man left, disappointed Watson jumped on his friend:
- Sherlock, you are a great detective. How could you refuse to help the poor man?
- My dear friend, he was not absolutely poor. It his purse there was 115 pounds and 25 pence.
- But how do you know ?
- It is elementary, Buddy. Let’s count it together.