An economist had finished his day at work and was leaving for home, when he noticed a small boy call out to him from the footpath where he was sitting with a dog.
The boy said, "Sir, would you like to buy a dog."
The economist was surprised by the approach, but asked nevertheless, "How much are you selling the dog for?"
The boy said, "Sir, would you like to buy a dog."
The economist was surprised by the approach, but asked nevertheless, "How much are you selling the dog for?"