I hate people saying anything stupid. I don't really suffer fools very well at all. When people are acting like idiots, not that I'm not guilty of doing the odd idiotic thing myself from time to time, but when people say stupid things, it stresses me out.
It is, I think, an indisputable fact that Americans are, as Americans, the most self-conscious people in the world, and the most addicted to the belief that the other nations of the earth are in a conspiracy to under value them.