“It’s bigger!” I shriek, looking at his half. “As if.” He peers at the number on the caliper. “Yours is bigger by half a millimeter.” “Then let me have yours if it’s bigger.” He clutches his chest with laughter. “No way.” “Because you know yours is bigger,” I snap. He picks it up, gathering powdered sugar on the tip of his tongue. “I licked it so it’s mine.” “Are you four years old?”