Gear Against Gear

I squeezed past the heavy shoe mat and scrambled right out onto the sunlit concrete of the front porch! Leaning right against the railing was a two-wheeled bicycle, and down by its pedal sat a magnificent steel gear full of pointed metal teeth. It looked like a giant version of my wrist saw! I scrambled up the pedal, hooked my plastic blade right between two chain links, and leaned in with all my plush weight. Clatter-whirr-clank! The chain jolted forward, spinning the gear so fast it knocked me clean onto my backside with a loud cackle! My saw blade got a shiny smudge of dark bike grease, but that clanking roar was magnificent!