Jaireme Barrow started booby-trapping empty boxes with fishing string and a 12-gauge shotgun blank that would go off when thieves picked up a package he left on his porch. Barrow likened it to any alarm system. Its just a loud noise to deter theft. It worked so well that he now sells The Blank Box online, showing its effectiveness via videos of would-be package thieves screaming, falling off the porch and running away.”]