Chuck Palahniuk. Suffocation (№ 80943)

In a world where everything you expect some blind, random disaster or some sudden disease, the person with addiction has the comforting knowledge that it most likely lies ahead. He took upon himself a control over its unyielding fate, and his addiction deprives the cause of his death was that of surprise that is inherent in it.
A good addiction takes from death the spirit of unpredictability. And it really is such a thing as planning your own departure.