We really don't understand what some these people were thinking. For whatever reasons, they just abandoned their cars in some barn or storage facility for, quite literally, decades. And these weren't just any old cars, but some ultra-rare exotics and other sports and supercars that should have been given a lot more respect from the get-go. But no, their owners didn't give a crap, forgot about them, or, perhaps, died and told no one else about their existence. Whatever the circumstances, check out this gallery of forgotten cars that's just painful to see.