LOL, I would love to see them take a page out of real life and have a really defiante kid that keeps them on their toes at all times! Maybe they could disappear on a road trip and come back with gauges is their ears and their lip pierced.
Really though, the only complaint I have is I would like to see more independent interactions between the family memebers. Sibs playing game together, mom and dad haveing a movie night, maybe an argument that has to be settled, groundings, bday parties etc.
Oh yea, and could you make it where the kids don't come into the parents bedroom and jump on the bed while they are trying to make a baby? Thats just creepy!