Hence the current "Bush is dumb" campaign of Gary Trudeau and his many, many imitators and co-religionists.
My late Dad told me of a less-than-successful leaflet campaign in northern France during WWII - after the war it appeared in one of the many "at the front" movies, and the scene showed a grizzled infantryman picking up the leaflet, looking at it, hitching his pants, and walking slowly over the hill. The vets in the audience howled, the rest of the audience sat mystified...he was, of course, off to the latrine...