Petunia Dursley hadn't always hated Halloween. When she had been little, before Lily had really started to become a freak, she had loved it. But that was ruined for her after Lily went to that awful school. Then, whenever she saw a witch she would think of Lily, and become angry and upset. It didn't help that it was also the day her sister was murdered. It created feelings in her that she didn't understand; sadness, that her sister was gone, and yet happiness for the same reason. Halloween had earned a place on the list of things she hated.