THE VIOLIN

It began at school. Me and my friends Ben, Bobby and Zack played a prank on our teacher Mister Yellow. Trust me you don't want to know what we did. We had to clean up. I swept something. It was a violin. Zack said it should be eaten by him, Ben said it came from someone rich on an airplane and they just threw it. Me and Bobby said nothing. Suddenly gas came out of it. Luckily Bobby had gas masks for all of us. I broke it. We asked the same question. Who filled it with gas?