No authority, no security, the only absolute is what Ruth wants. Ruth has no one to protect her from herself, from her own lusts. Grandma can be a loving grandparent protecting her from the bad guy at Daddy s house. Daddy can make her feel happy. Mommy can love her, but the authority has been given into her tiny hands by default.
Several years pass.
When Ruth was a little girl Grandma's house was a place of security, but now that Ruth is thirteen years old, it is just a dull, boring, old place. Candy bars and TV no longer satisfy her appetite. Her flesh has grown, and with it has grown the habit of getting what she wants. Over the years she has learned how to cover her tracks when she wants the freedom to have some fun. She tells Dad, I m at Grandma's, and tells Mom, I m spending the weekend at Dad s.