In May 1991, the fire alarm at the Hyatt Regency Hotel in Baltimore, Maryland owned by the Hyatt Hotel Corporation (Hyatt) (defendant) sounded after a cleaning crew failed to turn on an exhaust system while cleaning an oven in the kitchen. Corrine Juisti (plaintiff) and her husband were staying on the 14th floor and were forced to evacuate the building using the stairs. After reaching the ground floor, Juisti experienced shortness of breath and needed oxygen support. The next day, Juisti continued to have breathing problems and experienced chest pain. Juisti was determined to have suffered a collapsed lung. Juisti brought an action for negligence against Hyatt, claiming that her collapsed lung was caused by Hyatt’s negligence in failing to turn on the exhaust fans during the cleaning. At trial, the district court granted Hyatt’s motion for summary judgment, finding that Juisti had failed to show that Hyatt’s negligence was the proximate cause of Juisti’s injury. Juisti appealed the decision.