It's actually a great analogy when I think about it. A person who is drowning will cling to others, impeding their ability to swim and possibly drowning that person too (crabs in a bucket). If you are serious about saving a drowning person, you're going to take control of them and move them according to your will. As a lifeguard, I was trained to seize the person if they reached for me, and control them if necessary, so that they didn't drown us both. Fat camps, or maybe just prisons (let them eat each other if they aren't satisfied with their one portion from the cafeteria), would be the best way to enforce calorie intake and exercise.