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Be Careful What You Say

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In olden times, ordinary people would be very careful what they said because words have power. Literally. You didn't have to be a priest, oracle or wizard to cast spells with words, anyone, anyone could potentially make something happen just by saying so.

The reasons are both supernatural and mundane. Lending weight to the proverb "you're only as good as your word", you have an obligation to follow through on your promises, lest you face social (or even supernatural) consequences. This is why there is nothing more dangerous than making promises lightly (even impossible ones). Firstly, some fool hero will complete the task and since your word is binding you'll be compelled to keep your promise. The other is because you are never alone... someone or something will be listening, and may well decide to give you exactly what you wish for. More than one such tales starts because someone said something they shouldn't have, or started making very ill advised boasts.

Speaking in the heat of the moment is doubly dangerous, it's not uncommon for Curses to be cast this way to everyone's sorrow. On the other end of the spectrum, taking a vow of silence and undertaking some task or penance can break a curse.

Works using this trope will often discuss The Power of Language.

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Examples not otherwise included in a subtrope:


  • In a spin-off book of the W.I.T.C.H. comics, Taranee's brother, who's been spending lots of time with his girlfriend instead of her, ends up showing up much too late to see a basket game with her favorite team like he promised. She refuses to buy his (heavily implied to be true) excuses about car trouble and snaps that she wishes he'd just disappear. She immediately regrets those words because, as a Guardian of the Veil, her words have a lot of power.

Fairy Tales

  • In Jesper Who Herded the Hares, Jesper's brothers lied about what they were carrying to the old woman. They thought. When they got to the castle, they found they were carrying what they had said.
  • In Whuppity Stoorie, the woman says she will give the green gentlewoman anything she wants in return for saving her pig. What she wants, it turns out, is the baby.

Films — Animated

  • The Many Adventures of Winnie the Pooh: In the "Tigger Too!" segment when Tigger is stuck in a tree, he accidentally utters the following line which Rabbit overhears, resulting in a Heroic BSoD once he's freed.
    Tigger: If I ever get out of this, I promise never to bounce again. Never!
    Rabbit: I heard that, Tigger!


  • Exact Words in Johnny Rivers' "Secret Agent Man." The following line? "You'll give yourself away."

Video Games

  • The Witcher 3 features no shortage of curses applied to hapless folk, sometimes entirely by accident. In-universe, strong feelings and words are enough for any idiot to put some sort of curse on another idiot. Though it usually requires something like seriously betrayal leading to death or the like for a curse to happen all spur-of-the-moment. Even in-universe, no one is entirely sure of how such a thing happens, but Witchers like Geralt are proficient at breaking them.

Web Original

  • At some point in Noob Valentin tries to pick up a girl in MMORPG by telling her "I bet you're a bomb in real life". The girl in question is a Mad Bomber in-game, and not interested at all.
  • The SCP Foundation has the concept of an infohazard, an SCP which causes a paranormal effect when it is referenced or described. Many of those effects are dangerous, and Foundation personnel have to be very careful when speaking or writing about them.

Western Animation

  • Amphibia: In one of Marcy’s flashback, during one of her shenanigans created by her clumsiness, Sasha casually says that “One of these days, she’s gonna get herself killed” if she’s not careful at what she’s doing, with Anne finding her claims very offensive as she hears it. Come Season 2 Finale, “True Colors”, Marcy is stabbed in the back by Andrias’ giant Laser Blade, because she is making sure that Anne and the Plantars are sent to Earth safely, nearly dying in the process because of it.


Video Example(s):


I shouldn't have said Mush...

Chris and Martin talk about the polar bear and the walrus, the Arctic's strongest animals, and what would happen if they happened to fight and both are strong enough to turn them both into mush. Too bad there was a bunch of snow dogs dragging their sled within earshot when Martin said it.

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