I do think that families often times take their problems out on those closest to them, too whereas this behavior in other relationships might not be tolerated as much.
I agree with you on this. Yes, maybe it more like people always said Take thing for granted. Closest family always think that they can do it and without think of the consequences. They always thought that they would be forgiven because they are family. But they didn't realize that they hurt the most would be their closest family and nobody else.