Chain Reaction

Found an open wooden slide-top box on the coffee table, spilling heavy black resin dominoes across the timber. Crisp white dots, clean square edges. I wasn't leaving them scattered. I grabbed four tiles, stood them upright on their narrow ends, and spaced them out in a tight arc. Finger-width gaps. Zero tilt. I locked my stance, took aim, and threw one sharp flick right into the back of the lead tile. Clack-clack-clack-clack! The entire line collapsed in a rolling wave, slapping the wood flat. Rapid-fire chain reaction. First run, zero stalls.