Of all creatures, man is the most difficult to keep caged. There is no textbook on escape, yet every prison, no matter how "escape proof" it is claimed to be, has lost some of its unwilling guests. Here are twelve true tales of men whose ingenuity and determination would not permit them to languish in confinement. Some were famous, some not; some imprisoned justly, some unjustly, but all had that extra measure of human dignity that would not accept chains.