Geez, LNL - I read that link. Much as I totally get it that your H and Laughing's H are narcissistic manipulators - I thought the woman in that link was inappropriate. Wailing all night in front of your 9 year old? Telling her "if Daddy is a good boy he'll do X and if he's a bad boy he'll do Y?" She sounds self-absorbed - or at least terribly depressed - but definitely not putting her child's interests first.
You and Laughing have provided fine examples of how NOT to do that, of how to keep to the high road and keep focused on your children's welfare. Sadly, I do see how the depression and anxiety that the narcissist creates then backfires on the LBS.