Reductio ad essentia
You have no doubt heard about the exchange between Representative Barney Frank (who happens to be Jewish) and a constituent who calls healthcare reform a "Nazi policy". Representative Frank concluded his dressing-down of the woman by saying that having a conversation with her would be as fruitful as having a conversation with a dining room table, and he had no interest in doing so.
It was a long drink of cool water for a lot of frustrated people to finally see one of the Town Hall ranters, some who are downright scary, being told in no uncertain terms that they are, well, saying things that are apeshit crazy. So of course it went viral immediately.
This is one of the many tributes I've seen around the web and I can even forgive the misspelling of "literally" due to the simplicity and profundity of it.
(You'll need to click on it to read it, obviously.)