What is the queen laughing at?

There is a joke, two peasant women are chatting, and one of them asks, what do you think the empress eats in the morning? Another peasant woman replied, it must be pie with onions. I don't feel bad about dipping as much sauce as I want. Just as they were chatting, a man said, if I were the emperor, I would pack all the cow dung in the village, and no one would pick it up, so I could only pick it up myself; Another man said, idiot, why did the emperor pick up cow dung? His old man must be holding a cattail leaf fan, eating watermelon and sitting in the shade watching others pick it up!