This must be a regional thing, because I am anything but an anarchist. I'm the prototype for a clean-cut upper middle class professional. But I also grew up in New York, and if you rip a sign out of my hands I'm going to curse you out.
It really boggles my mind that many of you people are pretty much openly admitting you don't care who was right and who was wrong, because kids heard "cursing". I have a toddler and if someone violated my physical space by ripping MY sign out of MY hands, I'd curse the guy to high heaven up and down the fairgrounds and I'd be HAPPY for my kid to see it - he'd be learning the appropriate response.
If you're unhappy because kids heard a confrontation, be mad at the person who started the confrontation. Waving a sign at a political rally is not starting a confrontation. Grabbing someone else's sign is. Let me guess, if this guy had punched some Ron Paul supporter in the mouth and other supporters started cursing at him, some of you Ned Flanders types would be lamenting how those "anarchist" cursing Paulicans were driving voters away.