Sorrell and Son by Warwick Deeping

Sorrell's frenzy of activity continued. It seemed as though he were trying to lose himself in a desperate combat with the multifarious slovenliness of the Angel Inn, to hide himself in the dust cloud of his own energy. He was never still. He ran round and round in his cage, sweeping, polishing, tidying, carrying things. His indefatigable activity impressed itself even upon the loungers in the "Cubby Hole."

-"That chap of yours seems full of juice, Flo."