 before you quit shooting because you need to either get that guy through the roof, get back far enough to shoot him on top of the roof, or just bring lead in his direction because you are about to have the president and the future president of the United States about to be killed. You do whatever you can right there. Absolutely. You must do that. And if nothing else, shoot into the air. That would have gotten the Secret Service's attention, I would think. I don't care. You put bullets towards the target. It doesn't matter. You start raising hell. You pull the button. You pull the fire alarm.