One day, Mr smith is going to take a train to hometown. When the train starst, one of his shoes falls to the groud. The train is running faster and faster and he can't pick it up. Then he quickly takes off the other one and throws it on the ground near the fallen shoe. A little boy on the train asks him, Why do you do that? I've already lost one shoe, Mr Smith answers. If a man picks them up, he is going to get a pair of shoes.