H.H. Munro's short story "Dusk" tells of the protagonist's, Norman Gortsby, decision to help out a seemly down on his luck young man. The young man has no money and has forgotten what hotel he is staying at. At first, Norman does not believe the young man, thinking the story to be a scam. Unfortunately for Norman, the young man has seemingly proved his story after Gortsby finds a bar of soap (which the youth says he must have lost). Norman loans the young man money to get through, with the expectation the money will be paid back. After the young man walks off, an older man returns looking for the bar of soap he lost. Essentially, Norman's initial feelings were right; the young man conned him.
Therefore, in the end, Norman's judgment does turn out to be correct. He thought the young man was lying to him about the circumstances which brought him to ask a stranger (Norman) for money. Yet, as the young man's story unfolds, more and more "truths" become apparent to Norman. Unfortunately, the "truths" turn out to be coincidental lies that make the young man's story believable. Based upon the believable nature of the story, after the missing soap appears, Norman cannot help but believe the young man. The moral of the story? Trust in your initial feelings. If nothing else, Norman learned that important lesson.