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** Calvin's dad does this sometimes when Calvin asks him questions, but he's doing it on purpose. (Read: just making shit up and silently laughing at Calvin for believing him when he says, for example, that old pictures are in black and white because the whole ''world'' was black and white when they were taken.) Watterson's commentary says that he assumes it must be a great temptation for real parents not to abuse their power for pranks.

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** Calvin's dad does this sometimes when Calvin asks him questions, but he's doing it on purpose. (Read: [[TheGadfly just making shit up and silently laughing at Calvin for believing him when he says, says]], for example, that old pictures are in black and white because the whole ''world'' was black and white when they were taken.) Watterson's commentary says that he assumes it must be a great temptation for real parents not to abuse their power for pranks.


A know-it-all who ''really does'' know mostly useful stuff is usually TheSmartGuy.

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A know-it-all who Averted in the case of TheSmartGuy, because they ''really does'' do'' know mostly useful stuff is usually TheSmartGuy.
and accurate information.

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A know-it-all who ''really does'' know mostly useful stuff is usually TheSmartGuy.





* ''Series/DoctorWho'': In [[Recap/DoctorWho2007CSVoyageOfTheDamned "Voyage of the Damned"]], Mr. Copper, the starship ''Titanic''[='s=] historian, claims to have a degree in "Earthonomics"... right after claiming that the UK is ruled by Good King Wenceslas and his wife Mary, and that Christmas celebrations involve the people of the UK eating the people of UsefulNotes/{{Turkey}}, like savages. It turns out later that he got his "degree" from a diploma mill (and ''dry cleaning service''), and he lied just to get away from Sto.

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* ''Series/DoctorWho'': In ''Series/DoctorWho'':
**
[[Recap/DoctorWho2007CSVoyageOfTheDamned "Voyage of the Damned"]], Damned"]]: Mr. Copper, the starship ''Titanic''[='s=] historian, claims to have a first-class degree in "Earthonomics"... right after claiming that the UK is ruled by Good King Wenceslas and his wife Mary, and that Christmas celebrations involve the people of the UK eating the people of UsefulNotes/{{Turkey}}, like savages. It turns out later that he got his "degree" from a diploma mill (and ''dry cleaning service''), and he lied just to get away from Sto.Sto.
** [[Recap/DoctorWhoS30E10Midnight "Midnight"]]: Professor Hobbes introduces himself as an expert on the titular DeathWorld. In this role, he proceeds to insist despite mounting evidence to the contrary that nothing can survive on its surface and shout down and denigrate his assistant when she proves to be at least as knowledgeable as him and a good deal more wise. Mr. and Mrs. Cane latch onto him as an expert largely because of his title, because he's agreeing with them, and because he's not the Doctor.



* Princess Hildegard in ''WesternAnimation/SofiaTheFirst,'' best exemplified in the episode "The Princess Stays in the Picture." [[FreudianExcuse When she was younger]], all the kids laughed at her because she couldn't do a "princess twirl," so she decided at that moment that she would always know everything so no one would laugh at her again. She finally eases up, and that character trait is never brought to the forefront again.

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* Princess Hildegard in ''WesternAnimation/SofiaTheFirst,'' best exemplified in the episode "The Princess Stays in the Picture." Picture". [[FreudianExcuse When she was younger]], all the kids laughed at her because she couldn't do a "princess twirl," twirl", so she decided at that moment that she would always know everything so no one would laugh at her again. She finally eases up, and that character trait is never brought to the forefront again.


** To elaborate further, the Institute is narcissistic enough to think that everyone above-ground is beneath them (not literally of course) while the Shi over in California were able to develop a vine that absorbs radiation to make land more livable, make synthetic oil out of seaweed, and in 2242 were able to rediscover nuclear power and manufacture new reactors (without relying on [[PlotDevice pre-war technology]] like the Institute), accomplishing more than the Institute ever could in a much shorter span. Also, despite the Institute claiming to have the most advanced technology, their laser weapons are less powerful than ones developed pre-war. As for their FEV program, the Institute spent a century turning people into Super Mutants with the goal of studying the effects of FEV on humans to improve the synths, but rather than working on curing them which West-Tek figured out how to do back in 2077, they simply released them into the wild.

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** To elaborate further, the Institute is narcissistic enough to think that everyone above-ground is beneath them (not literally of course) while the Shi over in California were able to develop a vine that absorbs radiation to make land more livable, make synthetic oil out of seaweed, and in 2242 were able to rediscover nuclear power and manufacture new reactors (without relying on [[PlotDevice pre-war technology]] like the Institute), accomplishing more than the Institute ever could in a much shorter span. Also, despite the Institute claiming to have the most advanced technology, their laser weapons are less powerful than ones developed pre-war. As for their FEV program, the Institute spent pre-war.
* The Narrator of ''VideoGame/TheStanleyParable'' thinks of himself as
a century turning people into Super Mutants creative genius who's doing things unheard of with storytelling. His actual story, as far as we can tell, is an incoherent mess that beats you over the goal of studying head with its themes. The Narrator himself also loves [[HypocriticalHumor professing the effects value of FEV on humans to improve choice]], yet the synths, but rather than working on curing them which West-Tek figured out how to do back in 2077, they simply released them into moment Stanley goes even slightly off the wild.beaten path, he starts [[BigStupidDooDooHead dropping childish insults.]]



** Also Red Mage to some extent.
*** [[TooDumbToLive "To some extent?"]]

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** Also Red Mage professes towards being a genius, but being unbelievably WrongGenreSavvy, he tends to some extent.
*** [[TooDumbToLive "To some extent?"]]
only succeed on the rare occasions that RuleOfFunny ends up in his favor.


A RealLife engine driving this is the [[https://en.wikipedia.org/wiki/Dunning-Kruger_effect Dunning-Kruger effect]], where the less competent are paradoxically ''more'' likely to consider themselves good at a task (because they are equally incompetent at assessing their own performance at it).

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A RealLife engine driving this is the [[https://en.wikipedia.org/wiki/Dunning-Kruger_effect org/wiki/Dunning–Kruger_effect Dunning-Kruger effect]], where the less competent are paradoxically ''more'' likely to consider themselves good at a task (because they are equally incompetent at assessing their own performance at it).


* [[Anime/NeonGenesisEvangelion Ritsuko Akagi]] insists that she knows what's going on when confronted by something outside her understanding, despite others having as much or even better knowledge than her. Such as Shinji turning into an [[WesternAnimation/MyLittlePonyFriendshipIsMagic Alicorn]] in ''[[https://www.fanfiction.net/s/8296097/1/ Shinji's Nightmare.]]

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* [[Anime/NeonGenesisEvangelion Ritsuko Akagi]] insists that she knows what's going on when confronted by something outside her understanding, despite others having as much or even better knowledge than her. Such as Shinji turning into an [[WesternAnimation/MyLittlePonyFriendshipIsMagic Alicorn]] in ''[[https://www.fanfiction.net/s/8296097/1/ Shinji's Nightmare.]]Nightmare]]''.


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* Weiss in ''[[https://www.fanfiction.net/s/13191717/1/My-Abominable-Monster-Classmates-Can-t-Be-This-Cute My Abominable Monster Classmates Can't Be This Cute]]'' is at best ''slightly'' more knowledgeable about humans than the other hybrids but acts like she's the local expert on humanity, such as assuming smuggle and snuggle are the same thing only spelled differently and believing that kissing is the act of biting each others lips.


* Chidi Anagonye in ''Series/TheGoodPlace'' is an odd variant. He's actually very knowledgeable about his chosen subject (ethics and morality), but he also happens to be TheDitherer. He loves to talk about it and he knows it very well, but he has no actual point or conclusion in his studies, and no actually useful information. The biggest indication is when we see his DoorStopper of a book on morality... and it's a complete mess, to the point that a celestial being of inhuman sight has a hard time getting through it. Indeed, over the course of the series, he presents contradictory views many times (in the aforementioned book, he reportedly contradicted himself ''midsentence''.

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* Chidi Anagonye in ''Series/TheGoodPlace'' is an odd variant. He's actually very knowledgeable about his chosen subject (ethics and morality), but he also happens to be TheDitherer. He loves to talk about it and he knows it very well, but he has no actual point or conclusion in his studies, and no actually useful information. The biggest indication is when we see his DoorStopper of a book on morality... and it's a complete mess, to the point that a near-omniscient celestial being of inhuman sight has a hard time getting through it. Indeed, over the course of the series, he presents contradictory views many times (in the aforementioned book, he reportedly contradicted himself ''midsentence''.''midsentence'').

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* On several of Discovery Channel's ''Shark Week'' specials, Rob Riggle presents himself as a shark expert. Real shark experts note Riggle has no idea what he's talking about yet his utter confidence in his "expert knowledge" lightens up his specials.


* ''Series/{{Amen}}''. Thelma is convinced that she's a SupremeChef when she's actually a LethalChef. This is despite numerous snide comments from everyone regarding how terrible her cooking is and her nearly burning hers and her husband's home. She's also quite convinced she's a wonderful singer when she's just as bad at that.

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* ''Series/{{Amen}}''. Thelma is convinced that she's a SupremeChef when she's actually a LethalChef. This is despite numerous snide comments from everyone regarding how terrible her cooking is and her nearly burning down hers and her husband's home. She's also quite convinced she's a wonderful singer when she's just as bad at that.

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* ''Series/{{Amen}}''. Thelma is convinced that she's a SupremeChef when she's actually a LethalChef. This is despite numerous snide comments from everyone regarding how terrible her cooking is and her nearly burning hers and her husband's home. She's also quite convinced she's a wonderful singer when she's just as bad at that.


* Speaking of Nigel Bruce, his characterization of Dr. Watson in the ''Literaure/SherlockHolmes'' series with Creator/BasilRathbone bears the "Boobus Brittanicus" nickname. However, the original Dr. Watson also had moments. In "A Study in Scarlet", he unknowingly mocks an article he reads in a magazine to Sherlock Holmes . . . the article's author. In "The Disappearance of Lady Frances Carfax" he arrogantly ignores Holmes' request to describe a suspect's ear, and fumbles the case so badly that Holmes has to go in person to save the situation. Watson similarly performs poorly in "The Case of the Solitary Cyclist". While generally responsible and competent in "The Hound of the Baskervilles", Watson begins by pridefully making a series of deductions on Dr. Mortimer with reference to his cane . . . all of which were incorrect, as pointed out by Holmes.

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* Speaking of Nigel Bruce, his characterization of Dr. Watson in the ''Literaure/SherlockHolmes'' ''Literature/SherlockHolmes'' series with Creator/BasilRathbone bears the "Boobus Brittanicus" nickname. However, the original Dr. Watson also had moments. In "A Study in Scarlet", he unknowingly mocks an article he reads in a magazine to Sherlock Holmes . . . the article's author. In "The Disappearance of Lady Frances Carfax" he arrogantly ignores Holmes' request to describe a suspect's ear, and fumbles the case so badly that Holmes has to go in person to save the situation. Watson similarly performs poorly in "The Case of the Solitary Cyclist". While generally responsible and competent in "The Hound of the Baskervilles", Watson begins by pridefully making a series of deductions on Dr. Mortimer with reference to his cane . . . all of which were incorrect, as pointed out by Holmes.


* ''Series/TheAndyGriffithShow'': Barney Fife, played up by Don Knotts. Don Knotts is an overly officious deputy, who once locks up the Mayor of Mayberry for being a vagrant. When he tries to make improvements or "modernize" law enforcement in Mayberry, HilarityEnsues.

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* ''Series/TheAndyGriffithShow'': Barney Fife, played up by Don Knotts. Don Knotts Fife is an overly officious Andy's overly-officious deputy, who once locks locked up the Mayor of Mayberry for being a vagrant. When he tries to make improvements or "modernize" law enforcement in Mayberry, HilarityEnsues.

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* ''Literature/ASeriesOfUnfortunateEvents'' has this with... [[AdultsAreUseless well, pretty much every adult character]], who enjoy either patronizingly or smugly explaining rather obvious facts to the Baudelaires despite the children being far smarter. More often than not, said facts are wrong.

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