I will be watching this with interest, because I have the same concern. Of my 5, only 1 is in danger of this, but it's already pretty close. My 15 yo son is so much like his narcissist father, that was one reason for our divorce. Now, he's getting worse thinking he is the man of the house, with all the entitlements of being an equal!

The only thing I have found in my research , and I don't know if this is valid or helpful... but it said that because the other parent is so unstable and self-centered, YOU have to be the balance, the calm, the loving and supportive one. I can see that for my other 4 who are emotionally abused by him. But my son is becoming just like him because he (ex) spends all his energy and time influencing him.