She said it just as she about passed my shoulder, so I'd have had to turn around completely to address her, opening up a potential for a confrontation. Fats ALWAYS do this, they make sure to make comments when they're just at the point where I'd have to start the confrontation if I wanted to reply. I have better things to do, so I pretty much never do. Knowing that they're triggered enough just by my mere existence to make a comment at all means I've won, in the end, anyway.