Car Crash!

Clarence glanced at Johnson. "You injured your kidney at work, so your balls often hurt when you pee, right?"

"How did you know?" Johnson was stunned.

Clarence continued to speak, "You went to the hospital and checked, didn't you? They told you that you wouldn't be able to have kids anymore, so you decided you had nothing to lose and started the loan shark business."

"You know about that too?" Johnson was completely stunned.

Johnson had never had any children and started a family because of his infertility.

Johnson told others that he did not want to get married and have children because he was a loan shark and he would worry for his family's safety.

However, the real reason was that he was infertile.

The main reason was that he had done too much manual labor at a construction site when he was young, which caused him to injure his kidney and become infertile.