Even at age twenty-eight, I still haven't figured out the thing about sunk cost. You know, cut your loses now before they get worse. In home cooking, sunk cost would be if you tried to make something and it doesn't taste good. A rational way to look at it would be, "Hey, I should eat something else." While someone like me would always say, "Just add some hot sauce and it'll taste much better." Luckily the last time I tried to make hamburgers at home, no hot sauce was necessary. I suppose if you're really really into making burgers at home, you should consult the The Burger Lab over at Serious Eats. There's some really good stuff in there about how to find the right blend of meats, how to grind your own, and even how to cook it sous vide. But damn yo, I...