It would be cool if doctors sometimes gave patients really poor prognoses for minor ailments just to inspire them and make them feel like a miracle had happened.
A guy with a minor broken ankle is told he's never going to walk again and spends the next few weeks in a cast feeling sad and trying to plan out how he's going to live without walking. Then, when the cast comes off a few weeks later, he takes a few steps and bursts into tears because he's been miraculously healed. Then he'd spends the rest of his life telling people how he beat the odds to live a normal life. He even names one of his sons after the doctor.
Then again, growing up as a kid named Doctor would probably be pretty hard.