Once upon a time, there was a caravan travelling to a different land far away. There was a very rich man in the caravan. When the man woke up he found out that his money had been stolen. He called the chief of the caravan and told him about the robbery. The chief of the caravan called everyone to a place where he had set up a tent. He said, "There is a donkey in this tent and everybody must go in this tent one by one and touch the tail of the donkey"."When the robber touches the donkey's tail the donkey will bray loudly". Everybody went in the tent and touched the donkey's tail. When the robber went into the tent he thought that if he touched the donkey's tail it would bray loudly and he would be caught so he did not touch the donkey’s tail, instead he came out of the tent without touching the tail. After everybody had gone in and came out of the tent he smelled everybody's hand, When he smelled the robbers hand he immediately caught the robber and forced him to give back the rich man's money. The rich man asked him how he knew who the robber was. The chief said, "I put some perfume on the donkey's tail because i knew that the robber would be afraid that the donkey will bray if he touched its tail so when i smelled everybody's hand i could not smell perfume on the robber's hand so i knew who was the robber". The rich man said, "wow, You are very clever indeed".