I know there's a bigger one I'm forgetting ATM (good thing, I guess), but I know I was spooked by a 'Tales from the Crypt' I saw when I was little where this woman had 3 wishes, and I don't remember how the first 2 went except that somehow her second one ended up giving her husband a fatal heart attack and she used her last wish to make him live forever, and he just started a constant, blood-curdling scream that couldn't be stopped as he was now alive forever in the moment of dying pain with the heart attack, and even after butchering him up and even ripping out his heart (stopped of course) she couldn't stop his screaming.