"I've got BPD and severe depression. Throw into the mix, I'm a cutter and have a very loooong history of suicide attempts.
A Dominant who is truely interested in the well being of their submissive/slave will take an active role in helping them get past what is holding them up.
I'm not allowed to mark my Mistress's property for any reason, and so far I have been successful in that. In many ways, being collared has forced me to overcome certain aspects of the borderline, and eased some of them as well.
I'd venture to say, it could be considered an alternate form of therapy almost.
-- brielle"