[[DescribeTopicHere Describe]] Derailed For Details here.\\
--OK. A character is trying to...\\
What's his name? \\
--Uh, [[AliceAndBob Bob]]. Bob is trying to tell a story...\\
Which story?\\
--It doesn't matter! Shut up and let me finish! Ahem. Bob is trying to tell a story or joke, or ask a hypothetical or rhetorical question. He's interrupted constantly by requests for unnecessary extraneous details, quickly derailing the story into a ShaggyDogStory or a {{Metaphorgotten}}. Common culprits are the ConstantlyCurious, the missing-the-point {{Cloudcuckoolander}} or the MouthyKid who's just trying to get on his nerves. A BadLiar or someone who CannotTellAJoke may do this to themselves, adding unnecessary detail or going back and changing things.

AKA
[[LongTitle The Trope Where A Guy Starts Telling A Story Wait It Doesn't Have To Be A Guy Or A Story Either Really It Could Be A Joke Or A Speech But Anyway Where Was I...]]

Compare DerailedFairyTale, where the listener insists on adding his own details in; SidetrackedByTheAnalogy, where a listener focuses on the irrelevant details of an analogy; and DistractingDisambiguation, where they interrupt to needlessly clarify terminology.

If the speaker is sidetracking ''himself'', it might be a case of DisorganizedOutlineSpeech, where he doesn't really know what point he's trying to make in the first place, or {{Metaphorgotten}}, where unnecessary deviation sends an analogy off track.
----
!!Examples:

[[AC:{{Anime}} and {{Manga}}]]
* In ''LightNovel/SeitokaiNoIchizon'', a rather basic math problem gets derailed in this way.

[[AC:{{Film}}]]
* In the Disney Channel Original Movie ''Film/PixelPerfect'', the computerized character interrupts her creator's description of what falling in love feels like with questions like this.
* In ''Film/MontyPythonsLifeOfBrian'', telling the Parable of the Talents (Matthew 25):
-->'''Brian:''' There was this man, and he had two servants.\\
'''Arthur:''' What were they called?\\
'''Brian:''' What?\\
'''Arthur:''' What were their names?\\
'''Brian:''' I don't know. And he gave them some talents.\\
'''Eddie:''' You don't know?!\\
'''Brian:''' Well, it doesn't matter!\\
'''Arthur:''' He doesn't know what they were called!\\
'''Brian:''' Oh, they were called 'Simon' and 'Adrian'. Now?\\
'''Arthur:''' Oh! You said you didn't know!\\
'''Brian:''' It really doesn't matter. The point is there were these two servants?\\
'''Arthur:''' He's making it up as he goes along!
** In fact, the Pythons loved this kind of gag. Just in the Dennis Moore sketch John Cleese got lost in discussions about his target practice, British botany, European history, human anatomy and NotActuallyTheUltimateQuestion while trying to rob some nobles.
** In the famous opening scene of ''Film/MontyPythonAndTheHolyGrail'', King Arthur's attempt to summon the Lord of the local castle derails into a discussion of how exactly King Arthur acquired a coconut shell in Medieval England, and ends with an argument over the migratory patterns of swallows.
** Also from the Pythons, or at least Michael Palin, John Cleese, and Graham Chapman, comes How To Irritate People. In the show, which is a collection of sketches like Series/MontyPythonsFlyingCircus, a man tries to tell his employer, who is visiting for tea, a joke he heard. Actually his wife wants him to tell it, and she keeps interrupting him to input unimportant details.
* Subverted in ''Film/{{Phenomenon}}''. Somebody asks JohnTravolta's character how old a person would be now if they were born on the 5th of March 1987 (or was it the 7th of July 1976? No, it was the 28th of October 1928...) Anyway, he asks a bunch of questions, the last one being "Where was he born?" The exasperated questioner asks what that has to do with it. "Well, if he were born in New York City he'd be..." and gives the age right down to the minute. He never does explain, though, how a person's gender affects their age.
* In ''Film/BladeRunner'', Holden asks Leon to imagine a hypothetical situation where he's walking in the desert and finds a tortoise on its back, the idea being to evoke an emotional response in order to determine if Leon is really human. Leon misses the point entirely (or, it is strongly implied, [[ObfuscatingStupidity PRETENDS to miss it]]) and wants to know which desert, why he's there, etc.
* In ''Film/StandByMe'', Vern likes Gordy's story about Lard-Ass but isn't quite happy until he knows whether there was an entry fee for the pie-eating contest.
* In ''Film/PiratesOfTheCaribbeanTheCurseOfTheBlackPearl'', Jack Sparrow manages to hijack a ship by leading guards Mullroy and Murtogg to [[http://www.imdb.com/title/tt0325980/quotes?item=qt0416603 one such conversation.]]

[[AC:{{Literature}}]]
* In Saki's short story "The Story-Teller," the story-teller is so successful with the children because of his ability to readily answer their irrelevant questions and incorporate them into the story.
* In his "Corfu Trilogy", Creator/GeraldDurrell relates that this was the only way he was able to learn history. His tutor told him all about Lord Nelson's butterfly collection and the names of Hannibal's elephants.
* In one of his stories, Creator/EphraimKishon tries to tell a joke to a Swiss gentleman, who then uses this trope. The dialogue ends like this:
--> Kishon: "It doesn't matter which tunnel! For all I care, it could be the Schlesinger tunnel!
--> Swiss: "The Schlesinger tunnel? Now that's funny! Ha-ha-ha..."
** At the end, Kishon is so frustrated and ashamed, he hangs himself with an indestructible Swiss tie.
* This is the reason C. S. Lewis gives for doing a flashback to narrate the story of Literature/PrinceCaspian. He says that if he showed the story through Trumpkin (the last chapter ended with Trumpkin saying he'll tell the children what had happened) it would take longer as he'd have to stop for all the interruptions. So he takes over for the time being, and then the next chapter begins with the children reacting to the finished story.
* {{Sherlock Holmes}} has a tendency to appear to do this, such as in The Adventure of the Blanched Soldier, where he interrupts a story to ask about the newspaper someone was reading. However, being Holmes, everything is a means to an end and an important detail in solving the case.

[[AC:LiveActionTV]]
* The AbbottAndCostello sketch ''Jonah and the Whale'': Lou's trying to impress a pretty girl with a joke, but Bud keeps interrupting with demands for details.
* On ''Series/TheWire'', Prez tries to set his class a TrainProblem and they pester him for pointless details (which side of the city this guy is from, what the purpose of the trip is, etc.), distracting from the basic maths problem he was trying to get across.
* On ''Series/TheOffice'', when asked which five books he would want on a deserted island, Dwight is obviously thinking too hard about it and asks whether there is any firewood on the island or whether he lost his shoes before he got there.
** Dwight loves this trope - when asked whether it is just for a man to steal a loaf of bread to feed his family, Dwight just adds his own details - the bread is poisoned, and the kids aren't even his.
* ''Series/{{QI}}'':
-->'''Stephen Fry:''' What I want you to do first is tell me all about the twelve Frenchmen and the twelve mosquitoes. Dara?
-->'''Dara ” Briain:''' Once upon a time... there were twelve Frenchmen, called 'Appy, Sleepy, Arrogant, Furieux, Choses comme Áa, Bof, and Zut Alors. And...
-->'''Phill Jupitus:''' [[OverlyLongGag That's six!]]
-->'''Dara:''' FenÍtre... er, Boulangerie, er...
-->'''Alan Davis:''' Le Table!
-->'''Dara:''' La Table, of course, and [[ThemeTwinNaming Jambon et Fromage, the twins]]. And they used to travel around with [[TemptingFate mosquitoes]], [[TheyFightCrime solving adventures]].
-->'''Phill:''' And ''what were the mosquitoes called?''
* In ''Series/HowIMetYourMother'', when Ted [[WhatDidIDoLastNight wakes up with a strange girl in his bed and a pineapple on his nightstand]] everyone tries to figure out who the girl is and how Ted hooked up with her ... except for Marshall, who's fixated on getting details about the pineapple.
** [[NoodleIncident And they never do figure out what the hell the pineapple had to do with anything.]]
* In ''Series/{{Friends}}'', Joey tells Ross a story about France which he ''swears'' is a guaranteed pass at getting laid. When Ross tries to repeat the story to a woman, it quickly devolves into this, just because she's genuinely curious about his time in Europe and he's a BadLiar.
* In an episode of ''Series/TheSuiteLifeOfZackAndCody'', Maddie is directing a student film with the help of the dim lifeguard, Lance, who plays the role of the wealthy male lead.
-->'''Maddie:''' Okay, Lance, remember: You're rich.
-->'''Lance:''' Rich who?
-->'''Maddie:''' No, I mean you have money
-->'''Lance:''' So I'm rich, and my name is Rich?
-->'''Maddie:''' No! No, your name isn't Rich!
-->'''Lance:''' What's my name then?
-->'''Maddie:''' It doesn't matter!
-->'''Lance:''' Then why can't it be Rich?
** In an episode of ''Series/TheSuiteLifeOnDeck'' when Bailey tries to tutor London, we get this exchange:
--->'''Bailey:''' Your bus leaves the station at--
--->'''London:''' *scoffs* I would never take the bus. I would take my private jet.
--->'''Bailey:''' Right...Your private jet leaves the bus station at 6 a.m.
--->'''London:''' 6 a.m.? I would never get up that early!
--->'''Bailey:''' *getting ticked* What time y'think you're gonna get there?
--->'''London:''' I don't know. Ask my chauffeur. He's the one driving me.
--->'''Bailey:''' *really ticked now* So let's assume that your chauffeur has gotten you to your private jet at say, noon.
--->'''London:''' But--
--->'''Bailey:''' You'l have lunch on the plane!!
--->'''London:''' *claps* Goodie!! Wait, what are we having?
* This was Mr. Kimball's schtick on ''Series/GreenAcres''. He would constantly interrupt himself to make corrections or qualifications, both unnecessarily pedantic and complete 180-degree retractions.
* An episode of ''Series/StargateAtlantis'' had Mckay trying to ask the team a hypothetical question that involved whether they would be willing to stop a train that was going to hit a group of ten people by redirecting it so it killed a baby. The thought is quickly lost as the team question why the people wouldn't simply save themselves and whether they could outrun the train.
* In ''Series/{{Scrubs}}'', Carla tries to use a metaphor to explain why they should help Elliot. It does not go well.
--->'''Carla''': If J.D. were drowning and he told you he didn't want you to save him, wouldn't you do it?
--->'''Turk:''' That depends. What if there're hot chicks at the pool? Maybe he wants one of them to jump in and save him?
--->'''Carla:''' Let's say there's no women.
--->'''Turk:''' There's always women at the pool, baby!
--->'''Carla:''' Fine. He's in a pond.
--->'''J.D.:''' Oh, I would never swim in a pond! They're infamous for serpents!
--->'''Turk:''' You could swim at the Y on Tuesdays - men only
--->'''J.D.:''' Have you been to the Y on man night? Not me.
--->'''Carla:''' N - oka - fine! Turk's the one who's drowning!
--->'''Turk:''' Oh! So now a brother can't swim!
* Israeli skit show ''Domino'' featured a skit in which a scout leader tries to tell a group of girl scouts a fairy tale, only to be bombarded with questions like these. It gets to the point she mentions a bear showing up, and one of the girls asks how old the bear is.

[[AC:{{Radio}}]]
* On [[Radio/TheRickyGervaisShow Ricky Gervais's XFM show]], Karl Pilkington's stories were very prone to this. It was an especial problem when it came to his "Rockbusters" clues, which Ricky would often interrupt to warn listeners that whatever detail Karl was trying to settle to his own satisfaction might be completely irrelevant to the actual answer.

[[AC:WebComics]]
* In ''Webcomic/ElGoonishShive'', "Tengu", tries to explain that Tengu is just is just his screen name and is on the verge of revealing his true name when Nanase and Charlotte [[http://www.egscomics.com/?date=2013-07-12 question and comment on]] how he looks almost nothing like the [[https://en.wikipedia.org/wiki/Tengu actual mythological creature]].
* As a meta example, a lot of serial webcomics have this happen to the stories themselves. A creator will post a page, and there will be tons and tons of questions and comments and speculation and possible plot-hole pontificating, which the author will then have to spend at least half of the next page providing an answer for. Example: "Why didn't character X do THIS?"; the next update, the characters try that, only to have it fail, or they ask themselves that and come up with an answer. One suspects that comics like ''Webcomic/TheOrderOfTheStick'' and ''Webcomic/GrrlPower'' would be a lot shorter if the characters didn't have to address every other concern raised by the fans from one page to the next. However, this may also be a good thing, and gives the illusion that the author and characters really did take into account everything, leaving little room for criticism after the fact.

[[AC:WesternAnimation]]
* ''WesternAnimation/TheMightyB'': The main character was trying to tell a joke:
-->"A leprechaun walks into a bar. Wait, you're not supposed to know it's a leprechaun yet..."
** The story gets progressively worse from there.
* In a ''WesternAnimation/TheGrimAdventuresOfBillyAndMandy'' episode, a bookworm (after accidentally possessing Billy's cat) tries to tutor [[TheDitz Billy]] in math, and asks him a classic two-trains question. Billy... makes one of the trains blue, full of clowns named Carl and Larry, with a conductor named Tim who is a vegetarian but secretly sneaks bacon when no one is looking.
* In ''WesternAnimation/TheSimpsons'' episode "Lisa's First Word", an exhausted Marge is trying to get toddler!Bart to sleep with a typical prince-and-princess story, and has just ended on HappilyEverAfter.
-->'''Bart:''' [[NowWhat And then what happened?]]
-->'''Marge:''' [[BabiesEverAfter They had 30 sons and 30 daughters.]]
-->'''Bart:''' What were their ''names''?
* Played straight in ''WesternAnimation/FindingNemo'':
-->'''Marlin:''' All right, I know one joke. Um, there's a mollusk, see? And he walks up to a sea, well he doesn't walk up, he swims up. Well, actually the mollusk isn't moving. He's in one place and then the sea cucumber, well they--I mixed up. There was a mollusk and a sea cucumber. None of them were walking, so forget that I--
-->'''Bob:''' Sheldon! Get out of Mr. Johansenn's yard, now!

[[AC:RealLife]]
* TruthInTelevision: This is a [[ConstantlyCurious favourite tactic of small children]] for irritating their parents, of course.
** Any university class ''will'' have this happen.
----
But what about...\\
--''Shut up!''
----