An expert would also know that children are not diagnosed with antisocial personality disorder anyway, and for good reasons. I’m guessing that granny isn’t familiar with conduct disorder, and even if she was, unable to distinguish it from more likely issues plaguing the kid. Children can be sociopathic, any parent knows this, but that doesn’t make them sociopaths. Children are not fully developed, and it’s dsngerous and unethical to casually label them with a personality disorder.