those people who eat everything and don't get fat

the other day, I came upon a realization that made me very happy. Those people that eat everything in sight and never gain an ounce, well, when the world ends or the zombie apocalypse happens, they'll be first to go! Us who were given a more conservative metabolism will live and those people who need 5000000000000000 calories a day to maintain a 100lb frame...well good luck to them when the grid goes down and food is limited! Just a new way to appreciate my sluggish metabolism :)