Note: Video of the ankle-twisting action is after the jump.
Seen here before the swelling makes his leg look like a marshmallow, dance competition contestant Daniel managed to break a leg while performing the undead male dance at Blizzcon 2010. Dammit Daniel, you'll never make a good dancer! Shit, or zombie for that matter. What you will make is some great robot-fodder while the rest of us are running for our lives.
UPDATE: Apparently just a torn ligament. Pfft, a real zombie would have danced that off!
Thanks to Victor, who's smart enough to know the whole "break a leg" thing isn't supposed to be taken literally.