I heard that you can shoot the glock pistol underwater and that it can be used as protection against predators. What do you guys think about that? Bang Sticks are illegal in many states from what I understand. I wonder what effects it would have underwater, and how far a bullet like a .45 or 9mm will travel underwater and still be effective enough to penetrate the skin of a big animal like a 12'+ shark? If it gets close shoot it right in the head or multiple shots in the gills or other areas. Would it actually be dangerous to shoot underwater or is it more of a noice maker?