He even turns the basement into an indoor stadium. Enthralled by possibility, Henry begins guiding every instance of Denny's behavior, ensuring that every action performed on one side is matched by an equal action on the other-whether it's throwing a ball, swinging a bat, brushing his teeth, coloring, and even wiping his ass. Denny quickly distinguishes himself from his peers, most conspicuously by his ability to throw perfectly with either arm, a...