The Rolling Sphere

A heavy rubber sphere blocked the corridor! Red, ribbed, and silent. I charged straight in and rammed it headfirst! It did not shatter. It rolled! It bounced back against my snout, spinning wildly across the patterned rug! I dug my feet in, swung my thick tail around, and gave it an almighty wallop. WHACK! The red orb shot forward, collided with the hallway baseboard, and bounced right back to my feet. A worthy sparring partner! I raised both claws high and bellowed into the hall. SKREEE-ONGK!