Did it ever occur to her to have her child examined? Did it ever permeate her self-absorbed consciousness that perhaps the reason the girl did not "achieve" the developmental milestones was because there was a medical problem? Who told her that children are given to us as "trophies" to demonstrate how "worthy" we are? It took this self-involved be-yotch SEVEN years to get around to having her daughter checked out and LO! And BEHOLD! There was a MEDICAL explanation for her difficulties! Of course, by now, her daughter probably ain't too damn crazy about her mother, either! I hope that woman gets an earful of THAT someday.
One more thing: go ahead and tell your child you don't like them when they do something you don't like. That way, they can see that "adults" are really just overgrown preschoolers! Insert whine here: "I don't like youuuuuuu".