Like an idiot, I keep forgetting that 90% of everybody is an idiot.
Which is to say, I keep forgetting that it's idiotic to tell someone who does something idiotic, "That's idiotic!," because thinking it wasn't idiotic isn't why the idiot did it in the first place. Even if you beat the 9:1 odds against convincing him it was idiotic, you've still got to beat another 9:1 odds against him caring that it was idiotic.
"The heart has its reasons," Pascal said, "which reason knows nothing of." True enough, and so does the eye, and the stomach, and the fist.