Sphere Sprint

Stopping right against that fuzzy neon green tennis ball gave me an instant idea. Why just park beside it when it could be an all-terrain treadmill? I scrambled onto the curving felt with both feet, finding surprising grip on the fuzzy fibers. The second I leaned forward into a jog, the whole ball began rolling backward across the smooth hardwood floor! I had to rev my plastic legs double-time to stay perched right on the top ridge. We rolled a solid five feet together before bumping into the heavy cast-iron base of an armchair. Nailed the high-wire act!