Tug-of-War with a Sneaker

I charged straight at a giant sneaker parked on the living room rug! Its thick rubber bumper was stubborn, so I lowered my head and gave it a solid shove—*thump*! It didn't budge an inch. Rawr! Challenge accepted! I dug my hind claws into the carpet fibers and scrambled right up onto the toe cap. I clamped both hands onto a thick white shoelace and yanked back with all my weight until the knot suddenly popped loose with a sharp *snap*! I tumbled right onto my tail, shook my head, and let out a triumphant squeak. The big shoe cavern is wide open now!