Trivia: When Mrs. Hills is offering Heather her grandmother's necklace, the man standing next to her is Jeff Kinney, the author of the books.
Trivia: When Greg and Rowley approach the Cranium Shaker at the amusement park, the two people on the ride let out the Wilhelm scream.
Answer: It is used after Greg tells Rodrick that Heather has accepted loded diper.