"Anger ... it's a paralyzing emotion ... you can't get anything done. People sort of think it's an interesting, passionate, and igniting feeling —- I don't think it's any of that —- it's helpless ... it's absence of control —- and I need all of my skills, all of the control, all of my powers ... and anger doesn't provide any of that —- I have no use for it whatsoever."TONI MORRISON, interview with Don Swaim, 1987
So Bob is constantly angry. Maybe he has a bunch of BerserkButtons. Or maybe he has a Hair-Trigger Temper. Perhaps he's prone to Hulking Out and going into a frenzy. Sooner or later his friends get fed up with his temper. Or maybe Bob decides to learn to control his Temper on his own. Either way, he'll do whatever it takes to become a calmer or more peaceful person.
This Trope usually goes hand in hand with a Heel-Face Turn for villains, Anti-Villains, and even Anti-Heroes, although the last one depends on how dark they really are.
There are many ways they can go about to achieve this inner peach. One of the most prominent ways is Walking the Earth. The character leaves on a journey to learn more about themselves, the world, and their place within the world. This often involves leaving behind their posessions as well.
This Trope is Older Than Dirt. In Classical Mythology after killing his music teacher accidentally, Hercules is sent to a farm to become a more peaceful person. Another old example, is Moses from The Bible. After finding out that he was a Hebrew, Moses kills an Egyptian Slavemaster who's beating his slave and flees to Ethiopia. While there, he gets married and becomes a wiser and more peaceful person.
If the villain is the one who tames his anger, it may be because there's a bigger threat coming. The villain will put their hatred on hold until their common enemy is defeated.
Contrast Teach Him Anger, where a Nice Guy or an Extreme Doormat, is given a backbone.
In a comedy, this often leads to We Want Our Jerk Back because Status Quo Is God.
Anime and Manga
In Ranma ½, Ryoga Hibiki is in a constant state of rage over Ranmaturning him into a little black pig. It's a long story, but basically their are a bunch of magic springs that causes the people who fall in to Shape Shift when they touch cold water and Ranma kicked him into one. At one point he meets a nice girl named Anna. They gradually fall in love, and Ryoga notes that he had never been so happy in his life. He finds peace on the farm and enjoys it. He even considers staying on the farm and settling down with her, effectivel ending his neverendingtrainingjourney. However, he decides to leave the farm because he couldn't stand the thought of being separated from the girl he loved first, Akane Tendo. The fans were not amused.
Another example from one Rumiko Takahashi's works. In Inuyasha several demons went around with a chip on their shoulder. They were cruel, vicious, and only wanted power. Prime examples being Inuyasha, Koga, and Sesshoumaru. By the end of the series, Inuyasha settles down and is married to Kagome. He is a much happier and more peaceful perseon. Sesshoumaru is still aloof and still wanders the Earth with Jaken at his side. However, Rin has clearly changed him for the better, helping him move from being a cold blooded killer to a stoic but caring individual. And Koga, at least in the anime, settles down and marries another member of his tribe.
Yusuke Urameshi and Kuwabara Kazuma from Yu Yu Hakusho. Both characters start out as angry teens who rebel against authority. By the end of the series both characters end up happy with their lives. Kuwabara changes his ways and gets serious about school. He gets into a prestigious high school through hard work. Yusuke didn't have it as easy, but he ended up happy in the end (despite not getting passed a Junior High Education).
Done more than once in Donald Duck comics: Daisy Duck tries to force him to control his temper at one point. Donald's nephews take advantage of this and misbehave, knowing that he won't spank them. They keep on pushing his buttons. Daisy tells Donald that it's okay to spank them as long as he does it with a smile. He spanks them in the end.
In the Classic Disney Short "Cured Duck", Donald is told by Daisy to control his temper. He answers an ad on the paper about a cure and gets a machine that doles out indiginties at him for ten minutes straight, and if he can sit through the ordeal without losing it, he's cured. Donald is eventually cured, only now Daisy is the one who loses her temper.
Another Donald Duck example with the short "Bellboy Donald", he is forced by his boss to be pleasant and control his anger around customers, with the threat of being fired otherwise. Following this, Pete's son Junior begins exploiting this mercilessly and pranks him at every turn. Donald finally snaps and drags Junior to the manager, who fires him on the spot before a satisfied Donald spanks Junior mercilessly.
Just like the Hulk, Wolverine tries to do this a lot. And just like the Hulk, it doesn't last. Notable examples include the volume where Wolverine and Rose work at a mine in British Colombia and Wolverine finds peace and tranquility. That peace is interrupted when Dog kills Rose. Wolverine later meets a Native American woman called Silver Fox and they fall in love. Sabretooth, jealous of the peace Wolverine found, kills Silver Fox. Yeah. He tends to do that a lot.
Subverted with Black Manta. Aquaman tries to magic to make Black Manta a kinder and more peaceful person. And it seems to have worked, for a while. But in the end, at a critical moment Black Manta stabs him and tells him this:
Black Manta: "Y'see, deep down, in my most secret heart of hearts, I'm still a totally depraved sonuvabitch whose main goal in life is to watch you die. Slowly and painfully. Just like your kid."
Batman: In Batman Bratty Half-Pint Damian Wayne starts out with almost little to no respect for anyone besides Batman and Talia Al Ghul. His anger leads to him nearly killing Tim Drake to replace him as Batman's sidekick. He's still a little bit of an angry Jerk Ass, not even showing his grandparents respect on the anniversary of their deaths, but he's a lot better.
In the novel Windflower, by Gabrielle Roy the Deuteragonist Jimmy was always angry. However, after he started living in the wilderness, and by the ways of the Native Americans he becomes a much more peaceful person.
Just like the example above, George Jefferson from The Jeffersons had a Hair-Trigger Temper. Probably even worse than Archie Bunker. He does manage to control it on occasions, but only when he's trying to keep up appearances and curry favors.
Both Becky Conner and Darleen Conner from Roseanne during their teen years (most of the series), are angry and always fighting with their parents. By the end of the series, both are happy with their lives and not as angry (in other words they got through puberty). Darleen even hangs a lampshade on this.
Mythology and Religion
As mentioned above Moses and Hercules, are some of the oldest examples of this Trope. They make it Older Than Dirt.
In Hamlet, the titular character spends much of the play angry over Claudius murdering King Hamlet. In his anger he kills Polonius which sets off a chain of events including Ophelia going insane and Laertes wanting revenge. By the end of the play, Hamlet has more or less come to accept the mistakes and enemies that he's made.
Daisy Duck, frequently tries to tame Donald Ducks anger, but it never works. Daisy has quite the temper her self, but she usually controls it. At least in comparison to Donald Duck.
Looney Tunes: Daffy Duck to a lesser extent than most of the other examples. He tries to keep his chool in cartoons putting him up against BugsBunny, but he hardly ever manages in the end.
Marvin the Martian is an example of a Looney Tunes character who can and does control his temper, however it's mostly because he's meant to be Affably Evil.
Done hilariously in Family Guy. Brian Griffin finds out that Glen Quagmire doesn't like him. He goes out of his way to try and win Quagmire over, with each attempt failing miserably and Quagmire mostly puts up with it. At the end of the episode, Brian asks Quagmire why he doesn't like him. So Quagmire unloads on him every grievance that he (and the fans), have had with Brian over the years in one hell of a long reason you suck speech.
Five hats means that five tropers think it is ready to publish.
You are saying that you think this draft is ready to be published. That means the description is not ambiguous,
it doesn't duplicate an existing trope, there are at least three examples, and the title makes sense.
Is that what you meant to do?
You are saying this draft has a ready-to-publish hat it does not deserve and you are taking it back.