Early in my career, I saved a man’s life, and he was not pleased. Mr. H came to see me for knee pain. With my training still fresh, I moved through a standard review of systems. When I asked about cardiac symptoms, he mentioned that for several weeks, walking more than a block caused chest pain that resolved with rest. The knee was forgotten. I explained the cardiac risk, ordered a stress test, and stood to leave. But as my hand touched the doorknob, I felt it: a quiet dissatisfaction in the room.