Though we aren’t blasé about death, we are accustomed to it. We know it will happen. When a person is hospitalized, it means his or her condition could turn serious, fast. A simple case of pneumonia could result in a whole-body infection that spirals and becomes fatal. A patient receiving a new hip could develop a blood clot that clogs his lungs. A heart-failure patient could suffer an arrhythmia. But hospital deaths are rarely as terrible as John’s.