PRETEND YOU ARE DRIVING a car in the middle of a thunderstorm and you happen upon three people on the side of the road. One of them is a frail old woman, who looks on the verge of collapse. Another is a friend who once saved your life. The other is the romantic interest of your dreams, and this is a once-in-a-lifetime opportunity to meet him or her. You have only one other seat in the car. Who do you pick up? There’s a good reason to choose any of the three. The old woman needs help. The friend deserves your payback. And clearly, a happy future with the man or woman of your dreams will have an enormous long-term impact on your life. So, who should you pick? The old woman, of course. Then, give the car keys to your friend, and stay behind with the romantic interest to wait for the bus!