“Hands in the air, and don’t move.’ ‘Which is it?’ asked the man. ‘What?’ barked Banecroft. ‘I have to move to put my hands in the air.’ ‘Obviously, put your hands in the air, and then, don’t move. There was an Oxford comma between the two actions, implying a list of events happening in sequence.’ He glanced across at Stella, who was standing on the other side of Hannah. ‘See? I told you it was important.”