Ever watch a kid roll an old tire down a steep hill? They have control at first and can aim it how they want, but as it gains speed the control wains and its all they can do just to run alongside. Until they trip or a rock bounces the tire or it gaind too much speed and all the kid can do is watch it crash into the side of dad's truck.
Ever watch a kid roll an old tire down a steep hill? They have control at first and can aim it how they want, but as it gains speed the control wains and its all they can do just to run alongside. Until they trip or a rock bounces the tire or it gaind too much speed and all the kid can do is watch it crash into the side of dad's truck.