Chapter 15 of Middlemarch, a passage about Lydgate's past:
"It happened when he was studying in Paris, and just as the time when, over and above his other work, he was occupied with some galvanic experiments. [...] he left his frogs and rabbits to some repose under their trying and mysterious dispensation of unexplained shocks..."I thought of Frankenstein.
And then comes the scene where Lydgate meets the actress Laure, with whom he's infatuated, and she strips him of illusions by confessing her murder of her husband.
He is shocked, of course, and after a moment, says "He was brutal to you: you hated him."
The moment was ruined, sort of, because I thought of something absolutely irrelevant, perhaps even inappropriate:
Oh well, what can I do. I'd been listening to the song over and over again in the afternoon. Don't you just love this catchy song.