By the time their day's work is ended their vitality for enjoyment has been exhausted.

They take their liberty much as a man takes the sentence of penal servitude when he had expected to be hanged.
Stand for a moment in this street that runs out from the Covent Garden Market and watch the office windows before the lights are extinguished.

Is there one attitude, one movement, one gesture that betrays the joy of freedom now that the day's work is over?
Scarcely one.

That boy with the long dark hair drooping on his forehead, contrasting so vividly against his sallow skin--you might imagine from the listlessness of his actions that the day's work was just beginning.

At lunch time, when the vitality was yet in store, he might have been seen, running out from the building in the gleeful anticipation of an hour's rest.