[[quoteright:350:https://static.tvtropes.org/pmwiki/pub/images/big_top_scooby_doo_nightmare_fuel.png]]
[[caption-width-right:350:''[[Music/WarrenZevon "Ah-hoo! Werewolves of London. Ah-hoo!"]]]]''

* The flag with the clown head on it that Scooby and Shaggy encounter while they’re searching around the circus.
* The Scooby in Shaggy's dream wears a very disturbing blank smile and stare while performing its feats of wonder.
* A healthy dose of FridgeHorror makes one realize how dangerous [[TheBrute Archambault]] really is. Most of the newer movies (''WesternAnimation/ScoobyDooAbracadabraDoo'' and onward) have the people behind the hoaxes openly admit they were never trying to hurt anyone. While [[SmugSnake Doublebay]] and Archambaut's werewolf scheme didn't hurt anyone either, when it falls through, Archambaut decides to just straight-up ''murder Marius in his trailer''. Think that's just exaggeration? Remember that Archambaut was slamming Marius against the wall by his neck when Scooby and Shaggy looked in. You can see his thumb pressing into Marius' throat. And Archambaut is a '''real''' strongman, so he knows he could really hurt Marius if he got angry enough. Sure, he tied Marius up as he stole the box office money, but he probably wasn't going to [[LeaveNoWitnesses leave any witnesses]], given how quick he turned on Doubleday, not with his strength and a dart gun full of super-strong animal tranquilizers. If Velma hadn't realized Archambaut's involvement, he very well could have committed murder.
** And remember, this was someone Marius worked with every day for at least a year. Someone who was angry and jealous of him for inheriting the circus, and was strong enough to snap even a fit guy like him like a twig. Teaming up with Doubleday was probably the only reason Archambaut didn't try going after him sooner.
* Shaggy nearly choking to death after stuffing popcorn in his face while talking about werewolves. His friends, believing that he's actually turning into a werewolf, back away. The music playing doesn't help either. He's barely saved when Marius throws a garlic necklace which hits him in the stomach, acting as an improvised Heimlich maneuver, and afterwards he chews the others out for not helping.
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