If a character, often a hero, is in a coma, unconscious, ill beyond lucidity, has had their Soul stolen, has just had major surgery or whatever, then the odds are that they will have a friend or family member who refuses to leave their side. Ignoring all distractions and necessities, they will keep watch over them. Other well-meaning characters may urge the watcher to go take care of themselves, but their efforts always fail. As long as their charge is helpless, the watcher isn't going anywhere. Sometimes they are trying to save the unconscious person from the terror of Dying Alone.