Tenali Raman and the Magic Comb

A smooth-talking traveling salesman gained an audience with the queen and presented an ornate comb, claiming with elaborate, convincing patter that it possessed magical properties capable of making hair grow thicker and longer within a single day of use, and asking an extraordinary price that only royal wealth could comfortably afford.

The queen, genuinely tempted by his confident demonstration and eloquent claims, was on the verge of purchasing it when Tenali Raman, present in the hall, stepped in — not by directly calling the salesman a fraud, which would have publicly embarrassed the queen for nearly falling for it, but by expressing enthusiastic interest of his own. He asked to buy a second, identical comb immediately, explaining that he wished to test its remarkable properties on his own thinning hair before recommending it further to friends at court.

He used the comb visibly and dramatically over the following days in full view of the court, making a great show of counting and measuring, and reporting each day with exaggerated disappointment that no growth whatsoever had occurred despite following the salesman's instructions exactly. The salesman, cornered by a public, ongoing demonstration he could neither control nor explain away, quietly left the capital before the queen's own purchase was ever completed, and she was spared both the expense and the embarrassment of realizing how close she had come to being fooled — Raman's clever staging of the exposure landing without a single accusatory word ever needing to be spoken aloud.