The above picture is taken from Once Upon A Time, and it is at this point that No.2, playing the role of the Prisoner's Headmaster, asks No.6 "Why did you resign?" To which No.6 replies "From what Sir?" And that would be correct, because at this point No.6 has only just graduated, barely left school in fact, and No.2 asks the Prisoner why he resigned. The boy hasn't done anything yet. It will be years before he arrives at the point in his life when he resigns his job as a secret agent!