They're disturbing because they are the first to use violence. We need to push back, but without violence.
Hopefully they'll be outnumbered enough and there will be enough of a law enforcement presence to where won't be stupid enough to try anything. Perhaps the video that went viral showing one of them getting cuffed will also have a neutering effect.
That said, if any of them gets any bright ideas of putting his hands on me or someone I love, and my fist happens to smash his jaw in self defense, then "oh well."
I thought this happened to that man at the Arlen Specter townhall today. Did you see that guy in the white shirt, obviously a union guy, come up behind the older man who wanted to speak, place both hands on his shoulders, and try to force him to move, saying, "Sit down"? It shook up the poor guy.
IT’S A REVOLUTION, DAMMIT! WE HAVE TO OFFEND SOMEONE!