Nighttime Clothespin Clicker

Slipping back inside after that shed prank, the dark living room was dead silent. I needed some nighttime action before bed. Down near the corner baseboard, I found an old wooden clothespin and a shiny metal bottle cap. I clamped the wooden jaws onto the lower edge of the floor vent so the tail stuck straight up into the walkway. Then I balanced that metal cap upside down right on the wooden spring tip. One groggy foot shuffling past in the dark will knock the tail, snap the spring, and send the cap rattling across the hardwood like a firecracker! Ay caramba, I smothered a cackle behind the couch.