When Tasmania, Australia, library worker Tyron Waugh donned his Hulk costume for Burnie Library’s Book Week, he had no idea that by the end of the day, he would be considered a superhero in real life, too. A man had suffered a cardiac arrest on the street and Waugh—dressed as the Hulk—was one of those who performed CPR. Waugh used the library’s defibrillator to shock the patient and continued CPR until the ambulance arrived.