We can't just blame one or the other. They are both at fault for the way their children behave. They need to take parenting classes, badly. The children have no form of discipline or structure whatsoever, they are allowed to do as they please with no worries of being punished. They don't respect what has been given to them and they let their friends trash their home as well. What kind of friend are those really?
It's sad, but I am waiting for the episode where they announce they are getting divorced, it doesn't seem that far off to me. Honestly maybe it would be better for all of them if they did divorce.
Zach used to be one of my favorites to watch, but his recent attitude, lack of respect and all around negativity just put a bad taste in my mouth now. I seriously think his bad behavior stems from the fact that his parents do not get along. He's looking for attention and is doing anything to get it. He's 19 now isn't he? I think its about time for him to grow up.

Really, this has all been said before and did not require a new topic.