The Springy Stopper Bounce

I pushed open the lower kitchen cabinet door and marched straight out across the cool linoleum floor! Right beside the back door frame, sticking out from the white skirting board, was a coiled metal spring doorstop with a neat white rubber cap. I squatted down, hooked two plush fingers under the tip, pulled it back tight, and let go. Boooiiing-twang! The spring whipped back and forth in a frantic blur, vibrating so fast it hummed right through the floorboards. I jumped back with a bouncy hop, giggling at the wild buzzing rhythm!