Graduation
This might not be a valid idea, but did they ever mention Summer's middle name? Somewhere on LJ someone once commented on how TV graduations no one ever has middle names. What if Summer finds out that they are going to read off the graduates' full name at the graduation ceremony? She doesn't want anyone to find out her middle name (not even Seth or Marissa know it) because she hates it. She enlists the help of Taylor to petition that only first and last names be read at graduation.