The Four-Quadrant Threshold Test

Enough staying confined to couches and countertops! I marched straight down the hallway toward the heavy front door to establish border control. Right before the entrance lay the welcome mat—woven coconut fiber, rough, brown, and divided by black printed stripes into four distinct rectangular sectors! Perfect. A high-stakes territory claim was declared on the spot. I dragged four stray plastic bottle caps from the recycling bin and placed exactly one in the center of each quadrant. Red cap in northwest, blue in northeast, yellow in southwest, white in southeast! All sectors accounted for, frontier locked down.