The Sports Guy has come up with a Vengeance Scale:

8.0 — Justin Timberlake’s “Cry Me A River” video.

(Note: The most underrated example of vengeance on this list. After Britney cheated on him, not only did he dump her, he put out a best-selling album fueled by a song about their breakup in which he basically destroys her with the lyrics. Just an unbelievable piece of work. It’s devastating. I can’t even imagine what she did when she first heard it. And if that wasn’t enough, he made a well-received video about the song, starring a Britney look-alike. And if THAT wasn’t enough, he immediately started going out with Cameron Diaz. By the time he was done, Britney’s career was in the tank — she was chain-smoking and hanging out with backup dancers and white trash guys from her hometown. Now that, my friends, is vengeance. Bravo, Justin. Bravo.)

Well said. But uncharacteristically, The Sports Guy fails to note the added bonus that the girl in the video, (not the Britney stand-in, the brunette), is approximately 4.75 times hotter than Justin’s dumpee.

Also, given that VENGEANCE is the theme of every martial arts movie ever filmed, I felt that the genre was not adequately represented by Daniel-san, Steven Seagal and Jean-Claude van Damme.