"Narcissistic parents constantly criticize their children. This enables the parent to feel superior to the child. They want the child to be successful solely to reflect positively back on them! Since they do not want the child to feel equal or superior in any respect, they continuously demean the child."
They are vindictive, using projection to assault the victim with accusations founded in part, by their own guilt, and assuming you are doing the same to them. For more info: http://www.lightshouse.org/things-narcissists-do.html#axzz2oqG2KxTZ