Reddy Fox in "Granny Shows Reddy A Trick"

Every day Granny Fox led Reddy Fox over to the long railroad bridge and made him run back and forth across it until he had no fear of it whatever. At first it had made him dizzy, but now he could run across at the top of his speed and not mind it in the least. "I don't see what good it does to be able to run across a bridge; anyone can do that!" exclaimed Reddy one day.
Granny Fox smiled. "Do you remember the first time you tried to do it?" she asked.
Reddy hung his head. Of course he remembered—remembered that Granny had had to scare him into crossing that first time.