The Shade, a Anti-Hero / Anti-Villain (depends on the story) who just happens to be an immortal English gentleman who controls darkness, once got contacted by a powerful demon called Neron who offered him to increase his powers in exchange for his soul (the whole thing being a prologue to an important Starman story). The Shade declines his offer with such style that it was even more satisfying than watching him beat the crap out of Neron.
Neron: You will rue the day you declined my offer!
The Shade: Rue? If I had a rue for every time someone said that, I'd own Paris.