Where’s Your Father, Kid?

I was in a barbershop when a man and his young son walked in to get a haircut. The man asked the barber to give his son a haircut while he shopped for groceries nearby. The barber finished giving the haircut but there was no sign of the father. An hour passed, two hours passed. We finally asked the son where his father was. The boy shocked us by saying, “That man was not my father. He just told me that if I wanted to get a free haircut at the barbershop, I should come with him.”