Good Melodies Gone Bad

There's a song that starts out well, it engages the listener with a catchy downbeat plucking of a lead guitar in a familiar melody. The beginning of this song always manages to catch me off guard. I like it. I feel as though I've heard the song before -- which I have -- but I can't place it. I continue to listen lon/g enough to hear the vocalist say "In a church..." and by that time I've realized that this is, in fact, the song with the worst lines of chorus that have ever been penned down in the history of man "Haven't you people ever heard of/ closing the g#*^!#%@ door/ it's much better to face these kinds of thing/ with a sense of poisoned rationality".

With a sense of poisoned rationality. What in the proud name of Doctor Egon Spangler does that mean? It's idiotic! What aspect of one's rationality can become poisoned, and in what refugee ridden, malaria infested, imaciated part of Darfur could it possibly be appropriate to use such tainted judgement?