Arrogance, yes, and that goes without saying. I think it was deliberate provocation.
Combine that with Alan Grayson crashing a Republican meeting and trying to incite a violent response to his arrogant rant, the plan is all too obvious. The only means they now have of discrediting the Tea Party movement is to intice them into some sort of violent act.
We see their trolls here telling us to gather but be silent and don’t carry signs that can be used as propaganda. Sure, let’s be silent, NOT!
Keep up the non-violent pressure and get into their faces just a hair off their nose. It is they who will be cought in their own trap.