Five-year-old cheyenne stark was riding in the back seat of her mom's car. instead of using a child's booster seat, cheyenne's mom used a seatbelt designed by ford. however, the shoulder belt was placed behind cheyenne's back by her mom. the car was involved in a collision. as a result, cheyenne suffered a spinal cord injury and was paralyzed from the waist down. the family filed a suit against ford motor co. alleging that the seatbelt was defectively designed by ford. could ford successfully claim that cheyenne had misused the seatbelt? any other defenses?