I have a question: does it ever happen that someone has no conscience but at the same time doesn't experience any "dark desires" to kill, harm, pester or deceive; he or she is just like any ordinary person in this very respect, just lacking a conscience? Can it be so? And if it is so, can it be that it isn't followed by any personality disorders; it's just like that someone was born with such an abnormality that they don't feel bad after doing something really bad and this is the only difference between such a person and otehrs?