Ok, I can see what it could be like. Say, you point the subject to a written list with options labeled A, B, and C and tell him: "These are all nice, but on considering which one suits us best, I'm leaning towards blah-blah, which is option A here - (raises a finger, then points at the list and repeats) - A. But first, let me tell you that... [the attack goes here]". So the burden of memory is just one letter.