Polly: No, he won't. But he'll suggest it.
You know how the Glad I Thought of It trope is when a character suggests something, only to have another scoff at the idea, but then claim it to have been their own idea when it succeeds? Well, maybe there's a trope involving a character who has a plan, but wants someone else to think it's their idea and thus drops subtle hints about carrying out the plan under the idea that it was their idea to begin with. But it'd need someone to make such a page, and I can't think who...
You could have it contrasted with Hint Dropping, as that's when somebody tries something, but the second person fails to come up with the idea. Hypnosis or other means of Mind Manipulation can be another way to do this. See also Backstory Invader.
Unfortunately, I don't see quite how such a page could be written, much less what sort of examples could be added. If only a Troper could come along and start such a page, perhaps they could better define the concept. If anyone could write such a page, perhaps they should give it a go?
Examples that you suggested:
- In Anime-Gataris, this turns out to be the M.O. of Nakano. In order to further his plan to turn the real world into anime, he nudges the Anime Club in the right direction by suggesting they follow through with events that align with his goals. The most blatant example of these is in episode 9, where Minoa hears Nakano's encouraging words echoing in her ears, only for the next shot to reveal he's right there whispering.
- In one episode of Case Closed, a murder happens at a reunion of Kogoro's high school judo club; both the victim and the killer are old friends of his. Conan decides to let Kogoro have this one, but still helps out by providing subtle hints; for example, he realizes that the victim's time of death was thrown off because she engaged in rigorous physical activity before being killed and nudges Kogoro in this direction by asking about a statue of the legendary warrior-monk Musashibo Benkei, who Died Standing Up.
- Sonic the Hedgehog (IDW): After Starline knocks Surge and Kit unconscious when one of their tests goes awry, he 'reminds' them upon their reawakening that Surge wanted to test her powers more. She's confused by this claim, but eventually accepts it when Kit backs him up.
- Dilbert realized that deliberately invoking this on his boss was about the only way to get funding for an idea Dilbert came up with. Considering his boss, he's right. Dilbert refers to this as "bossifying" his idea, and an example can be seen here...
- Crystal manipulates her friend Tiffany into flirting with Gunther in order to attract hunky exchange student Quill's interest. When the plan backfires, the following exchange occurs:
Tiffany: Your dumb plan tanked, Crystal!
Crystal: I didn't plan anything, you ditz. You decided to pursue Gunther.
- Crystal then goes on to suggest, at first mockingly ("Gunthany!"), then seriously, that Gunther would in fact be a better match for her friend. This time, however, Tiffany doesn't take the bait. This could be an example of a subversion, such a thing might add some variance to the page, no?
- Crystal manipulates her friend Tiffany into flirting with Gunther in order to attract hunky exchange student Quill's interest. When the plan backfires, the following exchange occurs:
- Ice Age: Collision Course: Manny and Ellie try to make Peaches give up on the idea of moving far from them by making her think it's her idea. Ellie says this is how they always make Peaches do whatever they want her to.
- In The Incredibles, Bob goes to see super-suit designer Edna Mode to repair his old costume after it gets damaged on a mission. She claims that it's a "hobo suit" and says he needs a new outfit, leaving Bob to wonder where he can possibly get one. Edna immediately agrees to make one for him, all the while insisting that Bob is "making" her do so; Bob himself isn't trying to be tricky, as he genuinely just wanted Edna to patch up the damage. Much like Bob himself, Edna misses the Glory Days when she regularly designed super-suits, but she doesn’t want to admit it outright.
Bob: A new suit? Well, where the heck am I gonna get a new suit?
Edna: YOU CAN'T! It's impossible, I'm far too busy, so ask me now before I again become sane!
Bob: ...wait. You wanna make me a suit?
Edna: You push too hard, darling—but I accept.
- In Pollyworld, Lorelei tries to have Polly sent to a boarding school by convincing Polly's dad it's his idea.
- In The Princess and the Frog, when Louis the alligator refuses to take the heroes to the person that can break their spell (due to how dangerous it is), Naveen starts saying that is a pity he cannot fulfill his dream of playing jazz in the river boats, and that maybe if he wasn't a gator, it may be possible. After a few seconds, Louis says that he could ask to become human, with Naveen calling him a genius for "getting" that idea.
- In Trolls, Chef uses this to convince the king to bring back Trollstice.
- In Attack of the Clones, Palpatine pulls this gambit on Jar-Jar in order to force a declaration of emergency powers that will ultimately lead to his rise as Emperor. Interestingly, he does this by having his chief of staff drop the hint rather than doing so himself, leaving him free and clear of any accusations despite the hinting being obvious and heavy-handed.
- In My Big Fat Greek Wedding, Toula's relatives subtly convince her patriarchal father to let Toula get a job. The aunt, who owns a travel agency, loudly laments how she needs an assistant. Toula's mother sighs that such an assistant would need to be good at computers, and isn't it unfortunate that none of the family's sons fit the bill? Cue lightbulb moment. Toula's mother lampshades this practice, which is apparently common to all women, with a succinct quote: "The man may be the head of the family, but the woman is the neck. And she can turn the head any way she wants."
- Django Unchained: Stephen, Candyland's head house slave, is forced to resort to this with his owners after Calvin Candie, who is normally much more receptive to his direct criticism and input, is killed. He privately confides to Django how frustratingly heavily he had to drop hints before anyone finally picked up on his suggestion of punishing Django by selling him to a mining company known for its atrociously cruel treatment of slaves.
- This trope takes center stage in Inception. In the film, corporate espionage can be performed by entering a person's mind while they're sleeping and tricking them into either handing over information or stealing it from the person's subconscious. Far more difficult than stealing information is inception, the planting of information or an idea into someone's subconscious and making sure it goes so deep into their subconscious and is so convincing that they become willing to change their lives due to it. Since someone realizing the idea didn't come from their own mind is a sure way to make the inception attempt unsuccessful, doing it right involves not just a Journey to the Center of the Mind, but also manipulation of the target's psychological weaknesses including their hopes, fears, traumas, and desires, so that the idea being implanted will seem like it really did arise organically from their own mind.
- The King and I: Anna has to do this because she can't directly give advice to the King. See the entry under Theater.
- In Singin' in the Rain, after Cosmo comes up with the idea of having Kathy's voice dubbed over Lina's:
Kathy: Don, you're a genius!
Cosmo: (sarcastically) I'm glad you thought of it.
- The Wing or the Thigh: Philippe Bouvard, the TV host, asks Charles Duchemin how to convince Jacques Tricatel to confront him in the TV show. Duchemin answers that he should make Tricatel think that it is his idea. Bouvard manages to do so and so Tricatel wants to confront Duchemin. Bouvard asks him how to convince Duchemin to accept and Tricatel gives him the same answer: try to make Duchemin think that it is his idea.
- Codex Alera: In the last book, Ehren uses this to get Attis to get himself killed trying to fight Invidia. Considering the effectiveness and the sheer audacity of his choice of victim, it winds up as not just an example Ehren's, but also might be listable as an example of Glad You Thought Of It.
- The Concrete Blonde: Invoked. When Bosch fails to convince Belk to ask for a continuance, he assumes he should've tried to make Belk think it's Belk's idea.
- Polly tries to get Blouse to do this in Monstrous Regiment. It doesn't go quite how she planned. The book suggests this is a skill all sergeants (and people who gravitate to that rank like Polly) acquire to keep the officers in line.
- Lord Vetinari is a master of this (presumably just to amuse himself, given that he's an absolute dictator whose word is law). In the following example from The Last Hero, it serves Vetinari's interest to make Archchancellor Ridcully agree with him, because the two are theoretically of equal rank and friction between the city and the University could be troublesome:
Vetinari: No, I agree with Archchancellor Ridcully that sending Captain Carrot would be an excellent idea.
Ridcully: Eh? Did I say something?
Vetinari: Do you think that sending Captain Carrot would be an excellent idea?
Ridcully: What? Oh. Yes. Good lad. Keen. Got a sword.
Vetinari: Then I agree with you.
- He also does it in Jingo with General Ashal of Klatch:
Vetinari: May I suggest Ankh–Morpork?
Ashal: No. On neutral territory, of course.
Vetinari: But where, between Ankh-Morpork and Klatch, is there such a thing?
Ashal: I suppose... there is Leshp.
Vetinari: What a good idea. That would not have occurred to me.
- Ridcully does this, with his usual subtlety, in Interesting Times:
Ridcully: The statutes say you can only be a wizard by passing through the University in the normal way or by performing some great service of benefit to magic, and I'm afraid that—
Rincewind: Couldn't you just send me back to my island? I liked it there. It was dull!
Ridcully: No can do, I'm afraid. The offence has been committed over a period of many years. And since you haven't passed any exams or performed any service of great benefit to magic, I'm afraid I shall have to instruct the bledlows to fetch some rope and—
Rincewind: Er. I think I may have saved the world a couple of times. Does that help?
Ridcully: Did anyone from the University see you do it?
Rincewind: No, I don't think so.
Ridcully: Probably doesn't count, then. It's a shame, because if you had performed any service of great benefit to magic then I'd be happy to let you keep that hat and, of course, something to wear it on. (Beat) So, since it seems that you haven't actually passed your exams OR PERFORMED A SERVICE OF GREAT BENEFIT TO MAGIC, then—
Rincewind: (bowing to the inevitable) I suppose... I could try to perform some great service?
Ridcully: Really? Hmm? Well, that's definitely a thought.
- At the end of Harry Potter and the Deathly Hallows, Harry uses the Pensive to look into Snape's memories, one of which contains him telling Mundungus to give the idea of having 7 Potters to the Order and to make him present it as his own.
- Horatio Hornblower: In Admiral Hornblower in the West Indies, Hornblower conceives and carries out a complex scheme to capture a Spanish slave-runner ship and make it look like the idea came from his flag captain.
- The Mrs. Jeffries series is based on this. As the housekeeper to a remarkably rich Scotland Yard detective, she organizes the household staff to independently investigate the cases and then steers her clueless employer to the right conclusions.
- Over Sea, Under Stone, the first novel in Susan Cooper's The Dark is Rising series. While the protagonists are trying to figure out a riddle, their Great Uncle Merry (Merriman Lyon) repeats one part of it ("the signs that wax and wane but do not die") to help them figure out that it's talking about the phases of the moon.
- Shogun's Lord Toranaga is notorious among both his allies and enemies for his skill at this. During the massive Gambit Pileup that makes up the book, his enemies are constantly trying to figure out whether such-and-such a player is working with Toranaga, acting independently, or simply believes himself to be the latter when he's actually the former. Yabu and Omi also rid themselves of an enemy by manipulating an unaffiliated character into deciding to kill him, but the person who fell for it is well-known to be stupid and impulsive, and any intelligent characters see through it immediately.
- In the Star Trek: Enterprise Relaunch novels, Maras, who is probably the smartest of the three Orion sisters, but whose survival absolutely depends on Obfuscating Stupidity, especially by her sisters, is highly skilled at getting her oldest sister Navaar to think up plans that fulfill Maras's goals rather than her own.
- In Patterns of Interference, Trip tries something similar when trying to put his Section 31 handler Harris into a position where he incriminates himself.
- Tales of the Five Hundred Kingdoms In The Snow Queen, Aleksia's job is to arrange happy endings in her fairy tale kingdom, and it's often easier if her clients don't realize what she's doing. To do this, she's providing yet another instance where ideas are being given and created as someone else's idea. This could be useful in demonstrating the trope.
Between the two of them, she and Kaari had managed to put it into Essa's thick skull that this would be a grand betrothal token for Suvi, and even more cleverly, had managed to make him believe that he had thought of it.
- The A-Team, "Lease with an Option to Die". B.A.'s mother thinks he's the head of the A-Team, so the others play along. When the subject of a plan comes up, Hannibal thinks of one while saying that B.A. had told them about it on the way. B.A. goes along with it.
- Bewitched: In "Maid to Order," Darrin insists on hiring a maid for pregnant Samantha to prevent strain. She settles on Naomi, a sweet but incredibly clumsy woman. Naomi fully acknowledges her own klutziness, explaining that she's a widow who desperately needs a job to pay for her son's medical schooling. Thanks to some magical help from Sam, Naomi is able to succeed, but she ultimately ends up quitting, as she wants what's best for the Stephens and their unborn baby. Before she goes, though, she produces a list of the things she's broken and, without missing a beat, rapidly determines the exact percentage of her salary that should be withheld to pay the damages. Impressed by Naomi's calculator-like mind, Samantha suggests that Darrin find her a job in his advertising firm's accounting department, where she can get more money and play to her strengths. She rushes to tell Naomi the good news, saying "Mr. Stephens had the most wonderful idea!"
- An earlier episode uses a similar trick. Samantha comes up with some clever ideas for Darrin's latest advertising client (a soup-making company), and at first, he loves them—but then he decides that the only way she could have possibly devised the slogans was with her magic (in case you hadn't noticed, Bewitched is heavy on Unfortunate Implications). After a massive fight, the two eventually make up, with Samantha casually remarking "How silly that a can of soup would come between us." Darrin decides that it's the perfect slogan, and heads out...at which point Samantha tells Endora that she knew it would be a great idea, and deliberately let Darrin think it was his. Endora lampshades the whole situation and points out its issues, but Samantha resignedly tells her that it's the way things have to be. Yeah...
- Bones: Invoked. When some characters wonder how Dr. Sweets will tell Daisy Wick she's being fired, Booth suggests he'll make her think she's leaving on her own.
- In The Borgias, Machiavelli does this to make it look like the king of France is passing through Florence peacefully and that it was the king's idea. The French army's lances at point (that is pointing forward) would indicate Florence had been conquered, a possibility that had gotten the city threatened with excommunication. Their lances at rest (pointing straight up) would not, but they can't fit under the gates that way.
King Charles: Monsieur Machiavelli! Our lance at rest prevents us from entering your fair city!
Machiavelli: Then perhaps angled backwards?
King Charles: And of what will that be a symbol?
Machiavelli: Of Your Majesty's infinite resourcefulness.
- The Brittas Empire: In "The Old, Old Story", Councillor Drugget tries to convince Laura of the benefits of having Brittas take up a job as European Commissioner for Sport in Brussels. However, Laura points out that Brittas wouldn't take up this idea unless he thought of it himself. The solution is to put the advertisement for the job into a faulty pigeonhole that has been dumping stuff onto the floor all episode, which leads to Brittas picking it up and getting the idea himself.
- Throughout Season One of Frasier, Martin is haunted by the one case he couldn't solve, and the revelation that the victim's mother is dying only pushes him further, as he wants to give her closure before she goes. One night, Frasier, Niles, and Daphne go over their father's collected evidence and see a solution that he hadn't—namely, that the victim's jealous ex-boyfriend used a trained chimpanzee to commit the murder—and think they've solved the mystery. They don't want to steal Martin's glory, though, so they rearrange the photos and documents to make him discover their solution and thus come to it himself. The plan works, albeit in an accidental way: the actual murderer was someone else, but the trio inadvertently arranged the clues in such a way that Martin did notice the possibility for the first time.
- Hogan's Heroes: Colonel Hogan does this to Colonel Klink all the time. Later episodes suggest Klink knows he's doing this, and is going along to oppose the Nazi regime he despises.
- In Hotel Beau Séjour: The main characters have important information for the police but won't be believed if they approach the police directly, so Charlie talks to a local man who falsely believes himself to be psychic, and implants the information while making him believe that it was a psychic vision and then convinces him to go to the police.
- Monk does this when Disher lost his confidence, planting the idea in his head with a tape while he slept. As such it's technically an example.
- On The Office (US), Dwight invented a scheme to get Jim fired, which is easily another useful example we could list, but convinced a clueless Andy that it was his idea so that it couldn't get traced back to Dwight.
- Only Fools and Horses:
- In "Stranger on the Shore", Del used this to get Denzil to accompany him on his booze cruise to France. Denzil tried to back out but Trigger reminded him "It was your idea!", as this page is too.
- In "If They Could See Us Now", Trotters Independent Traders has gone bankrupt, and Del has been banned from any business dealings. He then pushes Rodney into realising the company could be reformed if he was the owner, and pretends not to follow the idea until Rodders explains it to him.
- Psych has an episode where Shawn realized that Carlton Lassiter really needed a jolt of confidence, so he and Gus spend the episode solving the week's case, and then relaying the information to Carlton in such a way that he solves it on his own, much like how you're coming up with all these examples now.
- Supernatural: Dean is angry that Castiel won't help him avoid one of Chuck's prophecies. Castiel responds that it would be a terrible, terrible idea to interfere with a prophet because that would bring down the wrath of an archangel. Dean then formulates a plan that involves saving Sam by using Chuck to bring down the wrath of an archangel.
- Yes, Minister: This is one of Sir Humphrey's standard tricks.
- Parodied in one of the Storyteller sketches on John Finnemore's Souvenir Programme, in which Conina Artist, having befriended young Finnemore, who just happens to work at the bank where her evil uncle keeps her late father's banknote collection, has to work really hard to get him to come up with an idea for getting it back to her.
- In the Discworld Roleplaying Game, the Sultan of Al-Ybi's extremely intelligent first wife makes very stupid suggestions that contain the basis of an idea he could develop himself.
- In 1776, Benjamin Franklin uses this twice in rapid succession with his and John Adams's proposal for American independence stalls in the Continental Congress. Franklin summons Richard Henry Lee of Virginia to ask about how to get the idea moving again, and Lee suggests getting someone else in Congress to advance the idea, just as the Pennsylvanian planned. Franklin then makes a show of wondering what Virginian could possibly have enough power in the state's government to suggest writing the proposal...and Lee immediately realizes that he's the perfect choice, bursting into song about how he'll get the resolution within a day. The whole situation is promptly lampshaded by Adams, who wonders why Franklin didn't simply ask Lee for help; Franklin replies that if he had, they would owe Lee a favor, a situation that could cause issues in the future.
- In Jacob Marley's Christmas Carol the Bogle drops increasingly obvious hints about Marley using his spirit powers to affect Scrooge, with varying terms, but he doesn't get it until the alcoholic version of "spirits" is used.
- The legendary "Friends, Romans, countrymen, lend me your ears" speech from Shakespeare's Julius Caesar is a famous example. Mark Antony, who gives the oration at Caesar's funeral, is given strict instructions not to praise Caesar by the group that murdered him. Antony agrees and promises to "bury Caesar, not praise him"... then proceeds to use those "insults" to sway the public's opinion against the assassins, all while explaining why what he's saying aren't compliments. Soon, the Roman populace is whipped into a frenzy of love for Caesar; the conspirators are next kicked out of Rome, which eventually leads to a civil war that ends in their defeat. This is all a subtle scheme on Mark Antony's part to seize power for himself and his own allies; by making it seem like he's simply following the crowd's will, he's able to endear himself to them and gain their unwavering support.
- Invoked in The King and I: it's a minor plot point that Anna has to do this because she cannot be seen as offering advice to the King. So she pretends to be guessing about his plans — and quite naturally he says that she's guessed right, and then proceeds to do just what she "guessed" that he would do.
- Xanadu on Broadway:
Kira: If only there were a book, a magic book, that listed all the locations in Los Angeles, and had their phones numbers next to it.
Kira: ...and if the book had pages the color of amber.
Sonny: I know! I'll look it up in the phone book!
Kira: My god, you're brilliant!
- Mass Effect 3: During the quest to get the various merc bands on your side, Shepard learns that the leader of Eclipse is in police custody due to being borderline Ax-Crazy. If you don't want to release her, you can convince her right-hand man to leave her in there and take over — or get him to "suggest" having her released and assassinated.
"Uh...yeah. You see right through me."
- In Red vs. Blue: The Recreation, Simmons, Lopez, and Donut are being hunted by the Meta. When Lopez makes one of his usual sarcastic Hispanic comments, Donut (who took high school Spanish but is nowhere near as proficient as he thinks he is) assumes Lopez has come up with a way to escape, and relates this idea to Simmons. Simmons likes the idea, and congratulates Lopez for his thinking. Meanwhile, Lopez, who can only speak Spanish, can't tell either of them that the idea has a few holes in it.
- Erfworld: When Wanda tells Parson how to deal with Stanley she says: "Arrange it so that he thinks it was his idea. Let him have your way."
- In Gunnerkrigg Court, Muut gives Annie a blinker stone that he claims was from Mort. While Mort does initially accept Annie's thanks, he later admits that the idea was Muut's in the first place, primarily due to the fact that Muut isn't entirely in Annie's good graces, but also because Muut isn't supposed to directly interfere with the living (Mort is a ghost). We're not privy to the discussion between Mort and Muut, but Mort makes it sound as though Muut was playing this trope in an extremely blunt fashion, and Mort wasn't fooled at all.
- In The Order of the Stick, this is how the High Priest of Hel (who’s possessing Durkon) gets Roy to take him to the Godsmoot. He can't just tell Roy where it is, or ask Roy to take him there (and if Roy knew what "Durkon's" intentions were, he would absolutely refuse), so he and Roy look around Tinkertown until they find someone heading to the Godsmoot, under the pretense of looking for someone who can resurrect Durkon. As the High Priest puts it to Durkon, he's a vampire, making something seem organic when it's really an unnatural facade is his entire thing.
- Darren of Wapsi Square not only tells Katherine to use this technique on Monica, but he uses this technique to make the suggestion.
- Adventure Time: Jake advocates this approach.
Jake: Then just make her think it's her idea. That's how you make the ladies do what you want.note
- Rick and Morty: It's revealed that the entire plot of "One Crew Over the Crewcoo's Morty" was just Rick trying to manipulate Morty into deciding to give up on his heist film idea.
- Jaga from Thunder Cats 2011 pulls one of these, carefully cloaking references to "Sight Beyond Sight" in aphorisms about Kingly behavior, to coax Lion-O into admitting he's had a vision. Unfortunately, he decides that having won Lion-O's trust, the details can wait... Unfortunately for both of them things go downhill from there.
- Total Drama:
- In "Picnic at Hanging Dork", Alejandro's already been developing a plan to seduce Courtney to keep her and Heather at odds. The problem is Duncan, whom Alejandro needs to keep oblivious to his tricks. To accomplish this, he manipulates a team strategy discussion so that Duncan proposes exactly what Alejandro was planning to do, leaving Duncan to erroneously think that he's the smarter one between the two of them while also ensuring that he'll lend his assistance to getting to Courtney.
- In "Twinning Isn't Everything", Max boasts about his impractical idea of placing doom balloons on a stick to poke the opposition with to Scarlett. Scarlett feigns being impressed and vocally ponders the possibility of creating a blowpipe to shoot the doom balloons of the other team to pieces, thereby taking them out with their own weapons. As per her plan, Max immediately claims the idea as his own, allowing Scarlett to keep her cover for another day.
Hey, great job on the page so far. If something else comes to mind you'll come back and add it, of course.