This briefcase didn’t just protect valuables — it fought back. In the early 1960s, engineers built a wild mechanical anti-theft briefcase that literally trapped anyone trying to steal it. The moment someone tried to force it open, metal rods shot out and locked their hand to the handle, while internal springs pushed the case upright to draw attention. No electronics. No alarms. Just clever engineering and a bit of psychological warfare. The idea was simple: embarrass the thief and hold them long