"Top secret criminal technique"? C'mon you have to tell us. I promise I won't tell anyone else! Did they turn the door handle? I knew an ex-AA man (that's the car one!), who used to carry a collection of coat-hangers and nail files in his boot. He'd pick one out and say - "Fiesta" and then show us the technique required to open the door. He said he always had fun explaining it to police when they pulled him over and asked to search the car.