You Must Be Joking, Jimmy (Definitely Daisy)

It's school sports day, and Jimmy happens upon his teacher's diary. Daisy expects to learn spicy secrets, but the diary, like Miss Ambler, is dull! So Daisy "invents" more exciting entries. Now Jimmy believes that Rambler-Ambler is going out with a soccer superstar. "No way!" his classmates cry. Can Daisy get them to believe?