The guard on duty came and the student got up.
The man told the kid, "You cannot sit on this chair tomorrow."
The kid wondered why he cannot sit on the chair when it was vacant.
The man continued, "You can sit on this chair if you want to become a security guard in future."
What made the man said that?
Did he sit on one previously and ended up as a security guard?
So does sitting on a CEO's chair means one will ends up as a CEO?