Alternate Character Interpretation: The Big Bad Wolf. While people know him to be a predator who tricks a little girl into telling him about her grandmother, other versions have a more disturbing take on him. The song, "Little Red Riding Hood", has him be a Stalker with a Crush who just wants to walk with Red through the woods. Other darker versions have him be a sexual predator who tries to take Red by force. Yikes.
Big Lipped Alligator Moment: In some versions where the wolf tricks the girl into eating some of Grandma's dead body and blood, a cat suddenly comes to call her a slut because she eats her grandma... then the cat is never heard again. Clearly Grandma lives in a very strange neighborhood.
Critical Research Failure: When one is talking about fairy tales, one often comes across areas of their history where this trope and Cowboy BeBop at His Computer come up. It of course doesn't help that even people who make it their lives work studying some of these tales, still don't know the full roadmap, so it becomes hard to judge the average troper to know everything, but some prominent examples are as follows.
A lot of big deal is often made about the symbolism of the red cape to the story's supposed metaphor. Why this is a problem is that Perrault's version written down in the 17th Century is the first known to even make a big deal about the colored cape. The story was told for centuries before there was a red hood to be symbolized.
Likewise there is untold amount of speculation from Perrault's having the wolf ask for red to strip off her clothes to get into bed naked with him is a sexual metaphor. This besides the general assumption that the story itself has pedophilia undertones. Problem again coming from what people are picking up on are remnants of older tales where sex in itself is sometimes included. Others nipped this in the tail so to speak as attitudes changed from region to region and century to century.
The werewolf part also comes up from time to time. Some may think the idea of turning the wolf into a werewolf or shapeshifter is a modern twist. While never a mainstream idea, some areas of France did in fact have versions of the story in which the wolf is called a "loup garou" their term for werewolves. For people scared of werewolves, the addition of the talking wolf being one was no real stretch of the imagination.