I don't see a knife anywhere... maybe he's just wanting to help her get to one of those hard-to-reach areas... Perhaps to cleanse the moonbat dingleberries from her bum?
I am surprised at the backlash the UTC police are getting over this. Mob mentality isn't known for good decision making, and the same is true for those that give over their own decision making to mob logic. If I had gone to this event, disrupting my peers who were studying for finals and been maced for being an idiot, I would do my best to move on and not succumb to the same stupidity again. I certainly would not claim any entitlement to behaving like an idiot, or immunity for my own foolish actions.