By degrees, Wemmick got dryer and harder as we went along, and his mouth tightened into a post-office again. At last, when we got to his place of business and he pulled out his key from his coat-collar, he looked as unconscious of his Walworth property as if the Castle and the drawbridge and the arbour and the lake and the fountain and the Aged, had all been blown into space together by the last discharge of the Stinger.
– Charles Dickens
Great Expectations, Chapter 25. After having dinner at Wemmick’s miniature castle home, Pip walks with him to his work place in Little Britain. He humorously tells us how Wemmick’s manner completely changes as he nears his office. He uses a post-office metaphor to describe how Wemmick assumes the cold, business-like personality he preserves for work. At home a very different Wemmick is warm and tender, especially in caring for his elderly father, whom he refers to as “the Aged.” A simile compares his ability to switch from home-mode to Wemmick’s castle, drawbridge, fountain and father being blown into space by the last firing of the “Stinger” cannon.