Where most stories rely on a suspenseful soundtrack to foreshadow the monster's attack, some go a step further, giving it [[ScareChord its own ominous theme]] in-universe. Either because it's been tagged with or entangled by a telltale noisemaker, or because it's ''eaten'' an audible mechanism -- often along with the person who'd been carrying it -- such a creature usually won't be much good at sneaking up on the heroes, as it'll be accompanied by a distinctive sound of its own.

The TropeNamer is the crocodile from ''Literature/PeterPan'', which had swallowed a clock and was always accompanied by a 'tick-tock' thereafter. FridgeLogic issues such as why the clock (radio, phone, etc) can be heard through a large creature's belly wall, or why it doesn't run down and/or get expelled in time, are often ignored.

A subtrope of HellIsThatNoise. Sister trope to ISophagus, may be related to WhyAmITicking
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!!Examples:

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[[folder: Anime and Manga ]]

* Zaraki Kenpaichi in ''Manga/{{Bleach}}'', arguably a predator, deliberately put bells on his hair to invoke this trope.

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[[folder: Film ]]

* In ''Film/JurassicParkIII'', a predatory dinosaur eats a man who's carrying a satellite phone. The phone is later heard ringing just before it attacks, and again from a gigantic pile of dinosaur poop.
* In ''Film/{{Tremors}} 2'', one of the Graboids eats a radio that's blaring music, which is then heard from underground before it reappears.
** Although inaudible to the human ear, the vibration of an approaching Graboid can be detected by seismometers in the films and the series.
* In a variant, the monster from ''Supershark'' emits an energy that makes radios succumb to static when it comes near.
* While the noise doesn't actually warn anyone, the sound of a victim's cell phone can be heard ringing from inside the ''[[SyFyChannelOriginalMovie Piranhaconda]]'' as it slithers through the jungle.

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[[folder: Literature ]]

* Captain Hook's crocodile nemesis in ''Literature/PeterPan'' is the TropeNamer. It also averts the clause about FridgeLogic in the main description, as the clock running down is discussed by Hook and Smee as a definite possibility [[spoiler: and in fact does run down just before the climax.]]
* The BeastFable called ''The Bell and the Cat'' or ''The Mice in Council'' discusses a plan to [[InvokedTrope put a bell on a cat]] so the mice will hear it coming. Averted because [[WhoWillBellTheCat none of the mice are brave enough to actually install the bell]].
* In ''[[Literature/{{Nightside}} Hex And The City]]'', the RealityWarper Madman is preceded around the city by his own personal soundtrack, which is helpful to people who want to stay the hell away from him.
* In ''Literature/SewerGasAndElectric'', a sewer-dwelling mutant shark eats a tunnel worker whose new digital watch plays ''Bolero''. Its next appearance is heralded by the sound.
* Mrs. Tachyon from the ''Literature/JohnnyMaxwellTrilogy'' often runs into people with her shopping cart. Fortunately, it has a squeaky wheel that the local people have learned to listen for.
* In ''Literature/TooManyCurses'', the Vampire King who prowls the halls of Margle's castle is cursed to emit a constant sound of ringing bells, denying him any chance of stalking prey undetected. When a more powerful monster catches and devours his body, his ghost is left behind and free of the curse, but the creature that ''eats'' him becomes subject to this trope.

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[[folder: Live Action TV ]]

* Played with on ''Series/GetSmart'', "Ship of Spies": A [=KAOS=] informer is killed just before giving Max some important information. The only clue: the killer made an unusual "clip-clop" sound. They investigate and end up on the eponymous ship where it turns out just about everyone makes that clip-clop sound - a woman with castanets, a man with a peg leg, etc.
* The {{Clockpunk}} monsters of ''Series/DoctorWho'''s "The Girl in the Fireplace" make ticking noises as they move, and break the mechanical clocks around them so people won't notice that it's ''them'' ticking rather than a nearby timepiece.
** In the Christmas special "A Christmas Carol", a [[FlyingSeafoodSpecial flying shark]] bites off the tip of the Doctor's sonic screwdriver. He later detects that the missing part is coming closer, just before the shark attacks him and a young boy.
** If a Vashta Nerada swarm eats someone in a spacesuit, you can tell because the person's [[BrainUploading ghost-circuit]] will repeat the same thing over and over again.
* An episode of ''Series/{{Seinfeld}}'' has Elaine using this technique by giving a container of Tic-Tacs to an employee who sneaks up on her in inconvenient situations.
* Averted on ''Series/{{NCIS}}'', when Abby tried to convince an intern to wear bells so she could tell if he (like her previous two aides) tried to sneak up behind her. Gibbs arrived and distracted her before she could press the issue.

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[[folder: Video Games ]]

* In ''VideoGame/{{Persona 3}}'', if you stay on one level of Tartarus for too long, you will face having the Reaper spawn. You're able to tell he's close by the sound of chains coming from his direction.
* Throughout the ''Franchise/SilentHill'' games, the protagonists have radioes which emit static whenever monsters are near--though it's never clear when exactly will they pop up.
* In ''VideoGame/{{Minecraft}},'' a second and a half before a Creeper explodes, you can hear the hiss of gunpowder igniting inside its body. This is especially scary because other than that hiss, Creepers are essentially silent. Meaning you have no warning other than a second and a half of hissing before the Creeper explodes, destroying you (or at best severely depleting your health) and whatever you were building at the moment.
-->sssssssssssssSSSSSSSSSSSSSSSSSSSSSSSS-*BOOM*
* In ''VideoGame/BatmanArkhamAsylum'', Killer Croc alludes to the Trope Namer, making ticking noises.

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[[folder: Western Animation ]]

* In the ''WesternAnimation/TomAndJerry'' short ''The Little School Mouse'', Jerry's last lesson for Nibbles is how to set this up by slipping a bell onto Tom. After he completely fails, Nibbles simply offers the bell to Tom as a gift, and the cat's ''thrilled'' with it.
* Parodied/blended with WhyAmITicking in ''WesternAnimation/{{Futurama}}'', in the following ShowWithinAShow excerpt from a film billed to have "a vampire AND an explosion":
--> '''Woman 1:''' Don't open that coffin! It's ticking\\
'''Woman 2:''' ''(with stake and hammer, over coffin)'' I have to! This coffin isn't going to open itself!\\
'''Dracula:''' ''(flinging open coffin and emerging)'' BLUUUUAAAH!\\
''(explosion, as advertised)''
* The ''WesternAnimation/LooneyTunes'' short "Bell Hoppy" puts a spin on the fable by having Sylvester the cat trying to bell a ''mouse'' (Hippety Hopper, the baby kangaroo that everyone thinks is a giant mouse). Not only does he keep failing, but everytime the bell rings the other cats jump out and beat him, thinking he's the mouse. Finally, Sylvester manages to bell Hoppity, [[spoiler:but then he is captured and put in a van. As the cats hear the bell and jump out, they are run over.]]

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[[folder: Other ]]

* Common in tales of ghosts that are ChainedByFashion.

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[[folder: Real Life ]]

* Cowbells, although mainly used for easy location of stray livestock, could also give a clanging warning when a ticked-off bull or ram was charging an unsuspecting target.
* Rattlesnakes use their tail rattles to scare off predators and [[HairTriggerTemper general annoyances.]]
** Or at least they're ''supposed'' to. Sometimes, however, a rattler will strike, ''then'' rattle.
* One particularly TearJerker-tastic example was invoked in parts of India. "Untouchables" (people of "unclean" castes, such as garbage collectors or leatherworkers) were generally despised, and people feared that even interacting with them would corrupt one's spiritual energy. Therefore, when Untouchables left their segregated communities and entered areas with other people, they had to sound a wooden clapper to warn others to get out of the way.
* Medieval lepers carried bells or clappers to warn other people of the risk of contagion; the sounds these devices produced also constituted a plea for charity.
* Not a threat, but tin cans strung behind the vehicles of "Just Married" couples provide a rattling declaration that newlyweds are approaching.
* Supposedly, Gan Ning (of the [[Literature/RomanceOfTheThreeKingdoms Three Kingdoms]] period) wore bells on his waist sash to frighten his enemies.
* Japanese and Chinese monks carried around a special staff tipped with rings called "Shakujo". The sound of the rings was used to warn people of the monk's coming (as a plea of charity) and to ward off animals.
* Inverted in the many, many cultures where making loud noises -- banging pans, ringing bells, fireworks -- as one travels has been alleged to ward off monsters or evil spirits.
* Some cat owners put bells on the cat's collar to warn birds or small animals the cat might be stalking. Many cats learn how to either stalk without jingling or get rid of the bell (and possibly the whole collar).
* Since the invention of cell phones, there have been instances of [[https://xkcd.com/207/ ringing dogs]]. If a dog is big enough to swallow a phone whole, the phone can still ring, letting people know they need to go to the vet and the phone store, ''definitely'' in that order.
* In WWII, the German Stuka dive bomber had attached the so-called "Jerico Trumpet" Sirens, Driven by the propeller when diving. This let everyone know that the Nazi war machine was about to ruin their day, and that there was nothing you could do about it.
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