ALthough I have a degree in Psychology, I have never worked with BPD clients. My daughter-in-law seems to meet the criteria for this diagnosis with one exception. Although she rages, hits, etc my son, she absolutely refuses to discipline her 3 year old out of control son. He curses, spits, hits, body slams his 21 month old sister against the wall, has pushed her down 4 steps, destroys home furnishings, etc etc etc, yet his Mother does nothing. Can anyone shed light on why she would never discipline him? Do those of you with this Dx have issues with disciplining your children ? I appreciate any information you could share with me !