Examination

Rather than wearing kevlar, or choosing who you trust well, or both, you ensure your own emotional death by destroying that part of yourself before others do. So, the protection purpose really doesn't exist. You are not protecting yourself. You are merely hurting yourself and, should someone else come along to hurt you, you have actually assisted them. That is, if you receive poor treatment, you accept it as appropriate for you, the unworthy one. You temper any realization of that person's flaws with your own guilt, the manifestation of the fact that you are unworthy. You ensure your downfall and pain.