Many years ago my late brother was eating in a diner when he looked outside and noticed his drivers door was open by about a foot. He went out and saw someone lying on the front seat working the wires under the dash. My brother (120# soaking wet) quietly moved to the truck swung the door open and with all his might slammed it closed promptly breaking the perps leg. The police hauled the guy away and unofficially congratulated him on a job well done. Of course today the guy might be carrying a gun and the police would arrest my brother for hurting the guy's feelings.