The most important thing to remember is that you can't argue with them because their culture is different. It's like if you went to the deepest jungle in Africa and the local tribe found out that you have an iPod. In this case, your iPod is reality, and the liberal natives of Massachusetts can relate to it no better than savages can relate to wireless internet. When they become frightened, they chant things like “Bushitler,” “No blood for oil,” and “Change you can believe in.” They generally won't attack you because they fear physical combat. It has bad magic. However, there are occasional incidents among some tribal members who have drunk too much alcohol, which they call “fire-water,” or “likka.” If you believe that you are threatened by one of these natives, tell him that you are friends with Chief Dick Cheney. They don't like Cheney, but they're afraid of him, so they'll leave you alone. They also have no idea that Texas is bigger than Fenway Park, so they'll believe that the two of you barbeque together on Sundays. Massachusetts liberals are not very smart.
Growing up in NH, I always felt great relief returning across the border from the deep jungle down south.