1. Did you see the look on Mark's face? He knew watching the slo-mo with Brooke that he caused the problem and screwed up the dance for them.
2. Not surprised that Katherine tweaked her back when she was in a back bend and had her leg kicked out from underneath her.
3. I'm glad she didn't get too slammed for something that WASN'T HER FAULT! Mark - man up and take the blame, it's yours.