Before Mark Hunt was known as the walk off knockout king, there was a lightweight fighter in PRIDE named Joachim Hansen. Hansen used his knees to finish his opponents in devastating fashion and would just walk off as soon as it landed.
You can google him to find the rest of his walk off Knee knockouts but this one vs Caol Uno was his best. One of the coolest things about this one was the time when it happened, 11 seconds left in the final round of a decision that could have gone either way. Check it out