A thread.
This story is told in traditional wedding ceremonies in many communities around Africa, and you've probably heard it.
I have just tweaked it a little to give it a general context.
Every evening, they took a drink together at the local pub as they caught up with the day's events.
"The man of the house must be feared by his wife and children," they told one another.
"You're too soft," Y would reply. "In my house, even the children must wake up. As I eat, they must sing my praises. I brought them up, so they must respect me."
"They are good for imposing party discipline at home," said the hawker. "If you have one of these, your party members will never defy you."
The hawker showed them how to use the whips by lashing them against the table several times, and they were both impressed.
"It looks like what I need," said Y.
"Me too," said X.
X told his wife he had met thieves outside, so he wanted her to do something that would scare them away.
"I will whip the cowhide hanging on the wall; and, every time I do so, you must scream."
He didn't want to betray his friend, so he took out his whip and started whipping his wife.
"Baba x, what have I done?" she kept on asking.
"You no longer respect me. Today, you'll know who is the boss in this house."
"Baba x, when did I disrespect you?" she inquired.
The children tried to separate them, but he accused her of telling them to beat him them up.
At that time, he did not know that they would never return.
He looked out of the window and he saw X and Mrs X taking breakfast together outside their house, and they were laughing out aloud.
His wife did odd jobs, educated the children, and they all became successful.
Years later, when he was old, frail, and sickly, he reached out to his wife and children and apologized.
He said he was misled by X.