Many Americans legitimately use service dogs to help them get through life with post-traumatic stress disorder. The animals help their owners not by providing emotional support (they do that, too) but by disrupting terrifying stress reactions. This qualifies many PTSD animals as service dogs under the Americans with Disabilities Act, but some companies refuse to agree. Like American Airlines, which kicked an Army retiree and his dog off a flight between two cities in Florida. [More]