Six Flags Worlds of Adventure, Aurora, OH, USA - A Wisconsin woman who was visiting Ohio's Six Flags Worlds of Adventure in July of 2000 was hit in the head by an unidentified object that was thrown at the train she was riding in on the wooden coaster Villain. The impact left skull fractures, and surgery was required to remove a damaged portion of her skull.Now, Terri Wang and her husband are suing the Six Flags park for prior knowledge of previous incidents which involved objects being thrown at the ride. She has stated that Six Flags failed to take any action against the matter, which could have prevented the injury.Wang claims permanent head injury, and filed the lawsuit with the Portage County Common Pleas Court on the 14th.