Trivia: Most of the names on the check-out card in the book are actual fictional characters or real people, most being pirates. There's Davey Jones, Bluebeard, Blackbeard, Captain Kidd, and Frank Beard. Frank Beard is a member of ZZ Top and incidentally the only member without a beard.
Trivia: The two surfer dudes eating Krabby Patties after Spongebob and his friends appear, are Lloyd Ahlquist and Peter Shukoff, the creators of the internet series "Epic Rap Battles of History." They were also the writers and performers of the rap battle before the credits.