Lisa's mother mentioned how hard things were since Mr. Hayes died. I noticed that Lisa was such an adorable sweethart during her debut. Later down the line, she became such a witch with a capital B. I wonder if this was the result of her father's passing since her attitude took a 180? Opinions, anyone? :confused:

I agree. I liked that episode. It was perfect to give that storyline to Lisa because she and Arnold were already at odds and she was a character we were already invested in. It wasn't like they brought in a new character just for that story line-it wouldn't have had the same dramatic effect.