three o’clock
`` Have you any occasion for my services , sir , for an hour or two ? '' he asked . `` No . Be back before I go out , myself -- be back at three o'clock . '' `` Thank you , sir . My little boy is below , if you want anything in my absence . '' The little boy dutifully attending Toff to the gate , observed with grave surprise that his father snapped his fingers gaily at starting , and hummed the first bars of the Marseillaise .