Once upon a time there was a little boy called Johnny who had a little problem with his legs. Whenever he ran races with his friends, his legs would tremble beneath him and he could never manage to win.

This made him feel very bad and he didn’t want to race anymore because his friends always beat him. Then one day, a boy in the class next door said to him: “Shall I tell you how to win a race against your friends?” and Johnny answered: “Yes, please! I want to beat them at least once.”

So off they went to the school racetrack where the boy from the next-door class taught him a few tricks to strengthen his legs. They trained for three hours at a time, and soon Johnny began to notice that he was getting faster with every single race.