In 1967, Iowa farmhouse owner Edward Briney, was concerned about the recent burglaries in his rural community. He boarded up his house, placed no trespassing signs around the property's perimeter, and rigged a 20-gauge shotgun to go off at the knees of any unwanted intruder opening a closed interior bedroom door.A month later, the farmhouse was broken into by Marvin Katko, who was shot in his legs. Katko, the burglar, sued Briney and won the case...