A young boy is wheeled into the hospital, he's unconscious and blood is seeping through his shirt. A doctor runs up and asks "What happened?" The paramedic pushing his gurney says "He was in a car crash, his father died at the scene, and the kid's got a collapsed lung." The doctor then looks down at the and suddenly recoils in shock, then says "I'm sorry, I can't operate on this boy. He's my son."