" The problem was that he’d found out along the way, through a pretty long string of lovers, that you could burn out on passion and romance the same way you could burn out on bad dope or optimism or any other damn thing. It happened. And once it happened it was forever. So that then, even when something undisputably good came along, you maintained a kind of reserve. Not that you didn’t mine it for everything it was worth. Sure you did. But you stayed a little aloof from it too. Because mines had a tendency to come crumbling down in the course of time and when they did it was a whole lot better to be sitting on top of one than to get caught in the dark deep inside. "

― Jack Ketchum , Joyride