MullaNasrudin had just bought a dog and was bragging about his good points to a friend.
"He is not what you would call a pedigree dog," said the Mulla, "but no prowler could come near the house without him letting us know about it."
"What does he do?" asked the friend. "Bark and arouse the neighbourhood?"
"NO," said Nasrudinproudly,"HE CRAWLS UNDER THE BED."