Yes ND, those with PD's have an extremely high incidence of "black and white" thinking, which is also referred to as an "all or nothing" cognitive approach to things. Thought you, and others, might be interested in this info...
" Defining Features of Personality Disorders: Distorted Thinking Patterns
People with personality disorders tend to exhibit distortions in the way they interpret and think about the world, and in the way they think about themselves. Not surprisingly, people with personality disorders think about things quite differently than people with healthy personalities. They may have thinking patterns that are very extreme and somewhat distorted. These dysfunctional patterns are most evident when someone attempts to understand their interactions with others. Examples of these problematic interpretations of the self-in-the-world include:
1) extreme black-or-white thinking patterns;
2) patterns of idealizing then devaluing other people or themselves;
3) patterns of distrustful, suspicious thoughts;
4) patterns that frequently include unusual or odd beliefs that are contrary to cultural standards; or,
5) patterns of thoughts that include perceptual distortions and bodily illusions...
Black-or-white thinking
Black-or-white thinking can also be referred to as all-or-nothing thinking. Thoughts become polarized as either-or; "always this" or "never that." Some examples of this type of thinking might be: "I never get anything right!" or, "If I am not brilliant, then I must stupid" or, "A woman can't have a career and be a stay-home mom" or, "If he does not love me, then he must hate me" or, "If I can't do this perfectly, then I won't do it at all!" You can see these kinds of thoughts leave no room for shades of gray and do not allow for compromise, or a consideration of multiple alternatives or possibilities. For instance, the conclusion, "If I am right, then you must be wrong" does not include the possibility that we could both be right, or both be wrong..."
Link to article in it's entirety
http://www.mentalhelp.net/poc/view_doc.php?type=doc&id=513