Humor aside, it’s quite tough to aim a heavy Lifesaver tube, accurately to a drowning person. It would be much easier to throw him the Rescue Stick, which is a baton shaped contraption. Contraption it is, coz it’s strings undergo a chemical reaction when they hit the water; they dissolve to release a horse-shoe shaped float. So basically the baton reacts to the water and becomes a life-saving device. As a back-up plan, in case the reaction fails, the tube can be inflated manually.