“There once was a young boy with a terrible temper. The boy’s father wanted to teach him a lesson, so he gave him a bag of nails and told him that he must hammer a nail into their wooden fence every time he lost his temper.
On the first day of this lesson, the little boy had driven 37 nails into the fence. He was furious!
For the next few weeks, the little boy began to control his anger, so the number of nails hammered into the fence dramatically decreased.
It wasn’t long before the little boy discovered it was more comfortable to hold his temper than to drive those nails into the fence.