Guard Dog/Trivia

Trivia

• This episode may be inspired from the TV show Get Smart, where the main protagonists Maxwell Smart (Agent 86) and Agent 99 have to protect some precious cargo on a train, while being followed by 2 KAOS agents.
• Petsburg is a parody of Pittsburgh.
• Hamtrak is a parody of Amtrak.
• The Petsburg Flyer is possibly a reference to the American Flyer.
• This is the second time that Dudley was forced to team up with a villain; the first was Snap Dad.
• This is the second time the Chameleon is shown without his Molecular Transformation Suit.
• The Chameleon made a book called The Very Lonely Lizard. It shows how he became a bad guy.
• This episode is the second time Kitty freaks out due to her cat instincts. She finds a railroad car filled with all sorts of cat toys and goodies, causing her to go crazy.
• This is the first time that both the Chief and Keswick do not appear.
• This episode reveals the fact that the Chameleon has a lack of friends.
• This is the first time the Chameleon mentions poison. The second time was in A Doomed Christmas.
• The device that Ollie uses to show the pictures of the D.O.O.M. Picnic resembles an iPad, a device made by Apple.
• This is the second time a character (this time the Chameleon) is shown in pajamas. The first was Kitty in Cruisin' for a Bruisin'.

Goofs

• The Chameleon shed his skin and wore underwear, a head brace and a mud mask before going to bed. When he cuddled with Dudley, he had his skin again and was wearing the transformation suit.
• The Chameleon said he sheds his skin every night, yet near the end of episode he shed his skin during the day.
• When the Chameleon was holding his bug-infested headgear, he appears to have a glove on his left hand.
• This is also the first time Kitty ditches Dudley for her own reasons.