- Anvilicious/ Some Anvils Need to Be Dropped: Being fat is not always bad. We get it. Please stop hitting us with the message, it's getting a little old.
- Critical Research Failure: In Trick Or Treat, Daniel identifies ice as a 'new kind of ecstasy'. Ice (otherwise known as crystal meth) and ecstasy are both amphetamines, but the effects are completely different- and crystal meth has been around for decades.
- Fridge Horror: In Earthly Delights, Jason tells Corinna that he and some of his junkie friends traded blood for heroin at a vampire club. At least one is a known prostitute- and the people in that club were consuming their blood, including Corinna herself. How many people got AIDS or Hepatitis or something from that blood?
- Harsher in Hindsight: In Forbidden Fruit we learn that Goss had a controlling, emotionally abusive mother who derided her over her weight and forced her on diets. She realizes her mother was wrong and sympathizes with a girl in a similar situation, but she still worries about staying thin.
- Nightmare Fuel: In Trick or Treat, a lot of people start suffering the effects of what the police believe to be poison or some kind of drug- but they can't find out what. It turns out to be ergot- a lot of people who ate bread from another bakery were suffering the effects of LSD. One man eats produce from the bakery, goes to the top of a building and throws himself off, believing he can fly. One of the residents of Insula witnesses it.
- Lestat from Earthly Delights. He believes he's a vampire and likes drinking blood.
- Goss and Kylie going apeshit in Devil's Food.
- Strawman Has a Point: Corinna occasionally monologues in some of the books about how the Mouse Police's presence in the bakery is justified because she refuses to use poisons or traps to catch mice and rats, as there's the possibility of the bread becoming contaminated. However, while the bakery is generally kept very clean, Horatio sits on the front counter and Corinna pats him whenever she makes a sale, so while the presence of the cats may mean that there's no chance of contamination by poisons, it also means that anyone who's allergic to cats (which is, after all, quite a common allergy) may not be able to eat the bread without having an allergic reaction.
- They Wasted a Perfectly Good Plot: There's at least one awesome group, person or place that appears in one book and hasn't been seen (as in, more than mentioned in a line or two) since. In order:
- Earthly Delights: Blood Lines, the vampire club
- Heavenly Pleasures: The titular shop and the sisters who run it
- Devil's Food: Cafe Vlad Tepesh, the goth club
- Trick or Treat: The only aversion- Uncle Solly's deli turned up again in Cooking the Books
- Forbidden Fruit: The freegans and Rowan
- Too Dumb to Live: Kylie and Goss. In Cooking the Books, they ask if they can ride on Tabitha the tiger, and when warned by Corinna that tigers like to eat people, answer 'Oh, she wouldn't eat us, not when we like her so much.'' Thankfully, nothing of the sort happens.
- What an Idiot!: In Devil's Food, Nerds Inc find a recipe for a weight-loss tea which they make and begin selling, since they're going broke. So far, so good. Except the recipe tells them in which countries the best herbs are to be found... and the nerds, being idiots, have the herbs imported illegally, which leads to them being caught, when, as Meroe says, "Only you idiots would have done such a thing. You could have gone out and picked your herbs and no one would have ever caught you."
- The instructions they provided with the herbs were incredibly vague, giving only a brief description of the proper amount to be taken, no warnings about overdosing, and no description of the contents.
- In Forbidden Fruit, most of the plot revolves around a baby prophesied to be a future Messiah. Eventually, the crazy fanatic parents attempt to kidnap the baby... without bothering to ascertain its sex. The Messiah was supposed to be a boy, the baby is a girl.
- The Woobie: Emily and Lena in Cooking the Books- the former is abused horribly by the actress she is working for, the latter almost commits suicide because of the workplace bullying she is subjected to.
- Pockets, too.
- Brigid and Dolores.
YMMV / Corinna Chapman