"Ah," he said, as I finished tying my tie; and he got up from the desk where he had been making notes of my disastrous case, and came over to me. "There is just one thing more. Sit down."
I sat down.
"Now cross your knees."
I crossed my knees. He bent over me and gave me a sharp tap below the knee with the side of his hand.
My chest may have disappointed him.... He may have disliked my back.... Possibly I was a complete failure with my pulses.... But I knew the knee-trick.
This time he should not be disappointed.
I was taking no risks. Almost before his hand reached my knee, my foot shot out and took him fairly under the chin. His face suddenly disappeared.
"I haven't got that disease," I said cheerily.