Under Dexterity Table I., there's a note that reads in part:
Defensive Adjustment refers to the penalty or bonus applicable to a character's saving throws against certain forms of attack (such as fireball, lightning bolts, etc.) due to dodging ability.As I said,I neither remembered this rules wrinkle nor saw anyone who ever used it. It's interesting to me, because this use of Dexterity precedes the explanation of its effect on armor class, so one likely read it before reading about the AC adjustment. Yet, it never registered with me. Funny that.