Can I Borrow Your Donkey?

"Can I borrow your donkey?" a neighbor asked Nasrudin at his door.

"I'd love to help you," was the reply, "but I've already lent it to someone else."

Just then, a loud "hee-haw" came from Nasrudin's yard.

"Hey!" the man said. "I just heard the donkey make a noise from your yard!"

Nasrudin quickly retorted, "Do you mean to tell me that you're going to take the word of a donkey over mine?"