Bohlool and caliph's food
It is said that Haroun Rashid sent some food to Bohlool. His servant brought the food to Bohlool, put it in front of him, and said, “This is the caliph's special food, he has sent it to you to eat.” Bohlool placed the food in front of the dog that was sitting in the ruins of the place.
The servant screamed, “Why did you give the caliph's food to the dog!” Bohlool said, “Be quiet! If the dog hears that the caliph sent this food, it won't eat it either.”