I remember there seems to be a joke in Xiaogang Feng's Big Man. Does anyone remember?

(Ge You): There used to be a madhouse. There are too many patients in the madhouse, all of them are idiots, and there are not enough doctors and nurses in the hospital. So the dean thought of an idea: take care of patients with patients. Choose a patient on each floor as the head of the building, and of course choose someone with normal mind. So the dean came to the first floor. He took an apple and asked them what it was. Many patients shook their heads. (Rosamund Kwan): Hey. (Ge You): Suddenly a patient raised his hand and said "I know". The dean said, "You say you say." "Apple". The dean said, "What's it for?" Dean Shi said that you are the building manager on the first floor. (Rosamund Kwan is anxious): Hey, they are testing you. Don't screw it up. (Ge You): The Dean came to the second floor again. He took a banana and asked the patient, "Who can tell me what this is?" The patient said he didn't know, and suddenly another patient raised his hand; "This is a banana," the dean asked. "What is it for?" "Food" asked the dean. "How to eat it?" "peel it and eat it." "well, you are the building manager on the second floor." The dean came to the third floor again. He took one (I can't remember) ... that ... had a big horn and a crank ... what was that? (A doctor in the stands answers): "The phonograph". (Ge You applauds): You are the building manager on the third floor.