 The Rocks. Six innocent swimmers have become trapped on two rocks by the incoming tide. Five of the swimmers are on one rock, while the last swimmer is on the second rock. Each swimmer will drown unless they are rescued. You are the sole life-guard on duty. You have time to get to one rock in your patrol-boat and save everyone on it. Because of the distance between the rocks, and the speed of the tide, you cannot get to both rocks in time. What should you do?