When I was struggling with cancer a few years ago, my wife and I formed our own "couple caution circle". Anytime a doctor came with news of my progress, my wife would give me a big hug. The reports were seldom good during the early stages of my illness, and one day a doctor brought particularly frightening news. Staring at my reports, he said in a low voice, “It doesn't look like you're going to make it.”

Before I could ask him a question, my wife stood up, handed me my clothes, adjusted the tubes fastened to my body and said, “Let’s get out of here. This man is a risk to your health.” As she helped me struggle to the door, the doctor came near us. “Stay back,” demanded my wife. “Stay away from us.”