Spring Thing Go Boing

Uh! I was crawling along the wooden floor by the wall and saw a twisty metal spring sticking right out of the baseboard! It had a little white rubber cap on top! So what did I do? I grabbed it and pulled it all the way back with both hands! TWANG! It whipped back and forth super fast! BOING-BOING-BOING! Haha, it buzzed right against my fingers and made the craziest vibration! I bent it back and let it snap five more times! Best boingy stick ever, uh-huh!