I have found that the most effective way to enrage leftists is to subtly (or not) ridicule their arguments and laugh at them. They cannot stand thinking that they could possibly be the butt of someone else's joke; they take themselves far too seriously. We are all supposed to acknowledge that their socialist emperor is wearing superior brainpower, no matter how hilariously false that is. That is the reason they so revile FR (where we have a lot of fun at their expense), FOX (poking its finger in the eye of the rest of the media), and positively come unglued about Ann Coulter, and Mark Steyn. Even their "icon", Michael Moo, is so unfunny is kind of embarassing. So, let's remember that laughter is good for the righteous soul!