This'll take some explaining.
Okay... who's read Lord of the Rings? Anyone? Right. The scene in which Merry and Eowyn dispatch the Witch-King of Angmar is a controversial one, with many attributing the death of the Witch-King to Merry's well-timed kneecapping. Suffice to say, among easy-going Tolkien fans, this event has gained some notoriety, withthe visions of ninja halfling kneecapping death-squads and Gondorian archers aiming for the kneecap, and so on. To my friends and I, it's an amusing runnin gag.
So when I heard Jan shout out, in the middle of a battle, "BEWARE! YOUR KNEES ARE MINE!" I had to hit pause and laugh for the next half an hour.