When Shawn rips the Missing Person poster off of the bulletin board, you can see a sign behind it which says, "Vintage Gold Pocket Watch. Inscription that reads: Don't lose... Henry. Watch has sentimental value. Reward: Free Psychic Reading. Call 555-0127". This a reference to the pocket watch given to Shawn by his dad in the episode, "Weekend Warriors".
When Shawn rips the Missing Person poster off of the bulletin board, you can see a sign behind it which says, "WANTED: Collector Comic 'The Green Spirit Strikes Again' Looking for first printing. Must be in near mint condition. Money no object. Call Shawn at 555-0127". There is also a picture of the cover of the comic book as well. This is a reference to the previous episode, "Shawn vs. The Red Phantom," in which Shawn rips the cover off of Gus' copy of this comic book in which Gus replies with, "You're buying me another one! First printing!"
Pineapple reference: Shawn and Gus mention pineapple scones ("double chocolate mango pineapple scones") at the coffee shop.
Lara Gilchrist's character, Sabrina Vito, was named after Executive Producer Kelly Kulchak's assistant Sabrina Vito.
While playing his handheld video game, Shawn is heard shouting "Run, LaDanian!" The game is clearly a football game, as LaDanian Tomlinson was at the time the star running back for the then San Diego Chargers. In a later episode, Shawn is briefly seen wearing a Chargers jersey, cementing him as a San Diego fan.