&gt;&gt;When a man being chased by police stops his car, gets out, takes cover behind the door and starts pointing something that looks remarkably like a gun at police, he should be shot.<p>How often does this happen?<p>A much more common occurrence is when someone sees a suspicious-looking dude walking down the street, calls the cops and says &quot;I think he is armed!&quot; and the cops arrive and shoot him without first verifying if he&#x27;s actually armed with a real weapon.