Close your eyes and imagine: chicken entrails blended and stuffed into a fleshy, pill-shaped sac, then infused with a savory cheese-inspired paste. Wrap that nuclear taste missile in a slab of breaded poultry, top it with a drizzle of deli mustard, and launch it careening toward your own gaping maw. Do you like it? You've just been Doubled Down, Dog, courtesy of KFC.