four o'clock
`` Not to be recommended , p ` raps , but it 's free to all , '' said the constable , nodding at the green seat which was already filling up for the night , with bundles of rags , voluminous overcoats and thin , shiny blue serges buttoned at the neck . `` I do n't want to steal a march on the regular custom , '' observed Richard . `` It 's first come hereabouts , but you 'd better not leave it too late . Anyway you 'll get a shake-up when the four o'clock patrol comes on . '' `` How 's that ? '' `` Always give 'em a shake-up at four o'clock . Do n't make many odds .