One bright morning, a little old lady opened her front door to find a sharply dressed young man standing there, proudly holding a shiny new vacuum cleaner.
“Good morning!” he said with a big smile. “If you could spare just a couple of minutes, I’d love to show you the power of the latest high-tech vacuum cleaner.”
The old lady frowned and started to close the door. “I’m not interested,” she said curtly. “I don’t have any money.”
But the salesman was quick to act. He wedged his foot in the door and pushed it open just enough to step inside. “Please, don’t be so quick to judge!” he said enthusiastically. “Let me show you what this vacuum can do.”
Before she could object, he pulled out a bucket and dramatically dumped its contents, horse manure, all over her spotless carpet.
“Now, watch this!” he declared with confidence. “If this vacuum doesn’t suck up every last bit of this mess, I’ll eat the rest of it myself!”
The old lady paused, folding her arms, as a sly smile crept across her face. “Well,” she said, “you’d better grab a fork, young man, because they cut off my electricity this morning!”