Mrs. Pound: "I don't know... I don't have a scale at home."
Dr. Grumpy: "Okay, then let's go over to the scale. I need to know what your weight is on the drug."
Mrs. Pound: "No, you don't need to."
Dr. Grumpy: "I'm sorry, I do."
Mrs. Pound: "No, I'm not going to. A good doctor should be able to tell my weight just by looking at me."