I have personally met many with this dis-order and have learned to see them accurately. They can also be very beautiful souls. Don't judge anyone before knowing yourself and the one you are having trouble with.
Watching this video can help you learn sooner; however, expect to learn slowly.
This video, defines Personality Disorder in general and more specifically defines Borderline Personality Disorder. The symptoms and treatment of Borderline Personality Disorder are discussed.
If their behavior seems "odd" at times; it maybe BPD.
