Anyone care to comment on the HPD's use of "Uhm" as compared to other sociopaths? I'd reckon they don't truly lack empathy unless they have comorbidity with NPD. I think their extremely severe disturbance of empathy is derived impurely from some component of attention-deficited behavior, jealousy, and the failure to recognize other's personalities from their own.
They really ought to rename it "Personality Indistinguishable Disorder" or something of the likes.
Edit: To reconcile, I'm implying the use of "Uhm" indicates a state of nervousness. Doesn't it seem likely an HPD can actually feel shy while not acting an ounce of it? I've heard someone I think is HPD claim to feel very shy around people she "liked".