Once upon a time there was a rich, but greedy man who called Simon. He had a housekeeper Nina who was a clever woman and Simon respected her. Once upon a time Simon went to the market and bought a mule. Robbers saw that he bought a mule and devised a plan. On Simon's returning way they one by one started to cheat him: "It is not the mule, it is a donkey!". The last offender said: "Oh, my poor friend, don't you see that is a donkey and not a mule? you have been taken in by some wretched cheats." Simon said that the stranger was a third man who told that he was fooled. "but I couldn't believe it," and dismounting from the mule he spoke: "Keep the animal, I make you a present of it." The rascal took the beast, thanked him kindly, and rode on to join his comrades. Simon told that story to Nina. Nina said that exactly those strangers fooled him. They decided to revenge them What happened next? Read the story to know!