When I recently had drinks and cheese with Stephen Dubner (I ate 100% of the cheese), he asked me why economics bothers me so much as a discipline, to the point of causing allergic reactions when I encounter some academic economists. Indeed, my allergy can be physical: recently, on a British Airways flight place between London and Zurich, I found myself seated across the aisle from an Ivy League international economist dressed in a blue blazer and reading the Financial Times. I asked to be moved and preferred a downgrade, just to breathe the unpolluted air of economy class. My destination was a retreat in the Swiss mountains, in a setting similar to that of Mann’s Magic Mountain, and I wanted nothing to offend my sensibility.I'll have to read the guy's book now...sounds like my kind of elitist snob.
Note: for my purposes, libertarian == "computer geek who fancies himself an amateur economist who spends his time playing World of Warcraft and posting to newsgroups". Somewhat more honorable than the blue-blazered first-class flying type, actually.