Donald Crockett, et al. v. Sumner County Board of Education, et al

A thirteen year-old child slipped off bleacher seats at a middle school and injured his leg when he was using the seats as steps in July 2012.  The child and his parents sued the school for negligence, and the school asserted the defense of comparative negligence.  The trial court applied the Rule of Sevens, concluded the school rebutted the presumption of no capacity for negligence, and determined that the child was solely responsible for his injury.  The trial court also determined that the school was not liable for negligent supervision of the child.  The parents and child appeal, and we affirm the trial court’s judgment.