Using a knife to rob someone in a car, is not smart.
For the driver, it is kind of like when a defensive lineman jumps offside in football. Free play! At that point, any mayhem the driver wishes to unleash, including running the punks over or a little impromptu target practice, is fair game.
7 posted on 11/19/2012 6:42:38 AM PST by gridlock
(ELIMINATE PERVERSE INCENTIVES)