SEE ALSO: Park Myung Soo expresses immense affection for his daughter

During the episode, a radio listener shared that he recently met with a best friend from the past, yet after they exchanged numbers, he later realized that he was given a fake number. At this, Park Myung Soo recalled a story of his own.

He started, "I had one friend who, like a loser, stole my textbook during my high school days. Back then, I fought with that friend often and, because there were no witnesses who saw him steal my textbook, I couldn't do anything except endure it." 

He continued, "However, after time passed, I saw that friend had become a car dealer when I was out looking to buy a new car. We exchanged business cards, yet when I came back out of the building I saw him rip up my business card and throw it away." 

Park Myung Soo said, "I could've bought a car from that friend, but because he hurt me ever since I was young, I didn't buy from him." He concluded with, "I don't know the future of human relationships. Until then, let's all just get along," sadly indicating that human relationships are unpredictable.