As retold by Bruce Lowitt

The rabbi's son has just gotten his driver's license and is negotiating with his father about use of the family car.

"I'll make a deal with you," the rabbi says. "You bring your grades up, study the Torah more and get your hair cut and you'll be able to use the car once in a while."

A month passes. The son returns to his father.

"Dad," he says. "I've brought up my grades and I've been studying Torah more, with you. Can I use the car on Sunday?"

What about your hair?" the rabbi says. "You didn't get a haircut."

"I was thinking about that. Y'know, Samson had long hair, Abraham had long hair, and even Moses had long hair...."

"True," the father says. "And they walked everywhere they went!"