Otto's Halloween Mad Lib

Ben was home alone. It was dark. It was quiet. Suddenly, Ben heard a teacher's whistle. What could it be? Ben worked down the stairs. In the couch room was Otto. He was holding a bed. His bum was bleeding. His chest was black and green, and swollen to the size of a TV. "Boo! What happened?" cried Ben. As Otto went shopping to the floor, he gasped, "Beware the orange triangled pumpkin!"