I'm so bothered by the tendency towards ignorance in political discourse. Bill Maher comes out against the H1N1 vaccine. Any doctor in the world will tell you that it's worthwhile, but one comedian thinks he knows better?
Hilary Clinton vocally says that the people know what's better for the economy than economists, never mind that economists are paid to know about the economy. Anti-evolution religious figures and climate-change deniers claim to have a better understanding of science than scientists.
In short, it seems commonplace for a random person to believe that they know more about a given discipline than people who have devoted their professional lives to the study of that discipline.