Military Battlefield Surgeon
Let's see...you report daily to a potentially dangerous working environment where people nearby are trying to do serious damage to others. You will need to respond to gruesome injuries with lightning-fast reflexes and impeccable knowledge about every nook and cranny of the human body. Your decisions will mean the difference between life and death on a daily basis.
Yeah, there's stress. But for the right people, this stress is the fuel that keeps them going.