I'm going to hate doing this, but I actually agree with at least part of what Kaltros said.
Kaltros
I fight for my liberty all the time, in various ways. I just do it on a smaller scale than politics, because I think the political system can't really be reformed anyhow. Much better to build a new one from the ground up, so a replacement might be ready once the fall comes.
As a libertarian I try to remain vigilent of the world in which we live. While I don't quite believe in the rhetoric presented in Hayek's Intellectuals and Socialism, I do believe that by participating in academic discussion and the public realm the tide towards liberty is fought in most democratic (and republic, before people pounce) states. I've accomplished this through academic publications through work, op-eds, and blogs I've participated in over the years. This has to some degree helped spread the beliefs in freedom, liberty, and equality under the law that I hold dear.
Furthermore, I believe that individuals should create black markets, showing the inefficiencies at trying to crack down on certain economic activity, and participating in at least mildly subversive behavior (when I tutor, I don't report my income to the IRS, I've smuggle cigarettes across state borders to sell for profit, pirating and sharing music, and any number of minor ways of breaking the laws). While these are hardly large protests, I think they show the power of the right of individuals to freely contract under mutually beneficial exchange in a free market, something I wish to defend.
Finally, I vote with my feet. Things like the TSA have made me, for the most part, stop traveling by air plane. Random bag searches in the DC metro have made me pump up the air back into my bike's tires over the winter and remain vigilant of when they might appear. I've stopped buying food from Chick Fil'A and other entities that fund political positions I disagree with. I give my time and energy to groups that actively push for the sort of liberties I wish to see society embrace.
Now, what would bring me to violence? I don't know. Large tax increases, crack downs on my ability to start businesses, or seek gainful employment according to my own desires would certainly be high up there. There are a handful of issues I consider riot worthy, and while I've gained a large sense of dissatisfaction with public protests, it's because I feel ultimately that political methods are neither a necessary nor sufficient condition for greater liberties. And, certainly, if push comes to shove, I may vote with my feet and move to other countries that embrace the values I like more.