1)You are driving a car and you drive has constant speed.
2)At your right, a ravine as far as the eye can see .
3)At your left, a fire engine which drives to the same speed and the same direction as you. (It is trying to double you).
4)In front of you, a pig who is bigger than your car.
5)Behind you, a helicopter which follows you shaves clod .
6)The pig and the helicopter drive to the same speed as you.
How are you doing to stop ?