As to the catalyst, the usage of certain words (libergenda, welfare, intellect, Janeane Garofalo, and oddly, Tit Mouse) within a town hall will cause the resulting sound waves to reverberate in a peculiar pattern. When exposed to a republican, the waves will latch onto the frontal lobe resulting in a highly irrational fear of science, artistic expression, literary latitude and an overall reluctance to engage in anything involving thought processes.
Recent studies have shown that when exposed to a tea bagger, without amplification, the unrestricted utterance of these words yield sound waves that bypass the frontal lobe all together and imbed deep within the amygdaloidal body of the brain, causing a nearly irreversible negative synergistic effect resulting in verbal convolution, an abnormal discontinuity in the senses, fidgets, disillusionment, the attempt to render warped reality into actuality, and the sudden ability to create propagandistic signage.
Jimbo: "What ails ya Jefferson?"
Jefferson: "Doc says I got the 'libergenditis'. Pass me that paint now... I gotta finnish this sign"
Jimbo: "It sure is purdy."