Precision on the Edge

You greeted me, and I acknowledge it. No time to waste. I marched straight up to the craft table where someone had left party supplies. An overturned plastic cup presented a narrow circular rim, demanding a proper test of equilibrium. I climbed atop an upturned wooden block, gripped a shiny paper party horn between my tapered arms, and set it horizontally across the rim. It wobbled, threatening to roll off, but I adjusted my stance instantly and held it steady until it locked into perfect stillness. A celebratory setup requires absolute balance.