You are driving down the road in your car on a wild, stormy night, when you pass by a bus stop and you see three people waiting for the bus: An old lady, an old friend who once saved your life and the perfect partner you have been dreaming about. There can only be one passenger in your car, whom do you choose?
The old lady of course! After helping the old lady into the car, you can give your keys to your friend and have him drive the old lady. You get to wait for the next bus with your perfect partner.