I could think of an imaginary condition where the body system can't break down fats so it constantly needs to eat and any excess will get stored. It's basically a one way fat storage disorder. If a person with this imaginary condition was starving they'd still be fat and leave a fat corpse. But as far as I know there is no such condition. And even if you did have it, you'd have to just monitor all intake carefully and not get to begin with and you'd be ok.       1608