Great Expectations by Charles Dickens Chapter 24 Page 17

As I was taking my departure, he asked me if I would like to devote five minutes to seeing Mr. Jaggers “at it?”

For several reasons, and not least because I didn't clearly know what Mr. Jaggers would be found to be “at,” I replied in the affirmative. We dived into the City, and came up in a crowded police-court, where a blood-relation (in the murderous sense) of the deceased, with the fanciful taste in brooches, was standing at the bar, uncomfortably chewing something; while my guardian had a woman under examination or cross-examination, — I don't know which, — and was striking her, and the bench, and everybody present, with awe.

If anybody, of whatsoever degree, said a word that he didn't approve of, he instantly required to have it “taken down.