In book 2, chapter 14, Jerry's wife asks him if he is going out to-night. He replies that he is and he is going fishing, and young jerry asks to his father "Your fishing-rod gets rayther rusty; don't it, father?".
Do be sure to know he is not, in reality, fishing. He digs up bodies to sell for science. This was a time period when science was budding, yet the the source for bodies was extremely limited to criminals. Gravedigging was common and problematic. This is his secret job. NOT FISHING.
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