How many times have you had the absolutely incorrect autofocus mode for the subject at hand? Chances are very good more than once. We're such funny creatures, we photographers. We'll double-check our exposure mode, make sure white balance is adjusted, we'll even tap into exposure compensation. But that AF button on the back of the camera... it might as well read "only push in an emergency." Why is that? I have a theory that should improve the situation. I hope you enjoy the show.