Okay, [[AliceAndBob Alice]] is trying to get some {{MacGuffin}} from Bob, but Bob doesn't want to give it up for free. Alice really doesn't have anything of value to offer, but she doesn't want to just let Bob walk away with the {{MacGuffin}}. In desperation, she says "I'll be your best friend!" This StockPhrase is the staple of every character who fails at negotiation.
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!!Examples:

[[foldercontrol]]

[[folder: Film ]]

* ''Film/ChasingAmy''
-->'''Alyssa''': If you come and pick me up, I'll be your best friend.
* In ''Film/DeathProof'', Creator/ZoeBell makes this offer when talking Kim into helping her do an incredibly dangerous car stunt. Kim replies that she doesn't need a best friend who lives on the other side of Planet Earth (given that Zoe is from UsefulNotes/NewZealand).
* In a negative fashion, Creator/TomHanks, in ''Film/TheMoneyPit'' extracts a loan from the 12 year old, super rich, rock star by telling him, "If you don't loan this money, I won't be your friend any more!" He got the loan.

[[/folder]]

[[folder: Literature ]]

* The Pigeon tries this in the children's book ''[[Literature/PigeonSeries Don't Let The Pigeon Drive The Bus!]]''.
* ''The Bronze Horseman'' by Paullina Simons. Alexander says this to Dimitri, the son of an NKVD prison guard, when getting his help so he can see his father (a political prisoner) one last time. Because of his father's job, Dimitri is not the most popular boy in school (whereas Alexander is the opposite) so it's actually a pretty good offer at the time. Unfortunately as they get older, Dimitri increasingly becomes a FalseFriend leeching off Alexander's power and popularity.

[[/folder]]

[[folder: Video Games ]]

* Used in ''VideoGame/GoldenSun 2'' by the first Djinni you meet, if you keep refusing to take him along with you. [[ButThouMust He comes along anyway]].
* Guybrush uses it at one point while [[OverlyLongGag asking repeatedly]] a pirate for a bucket in ''VideoGame/MonkeyIsland2LeChucksRevenge''.
** And in ''VideoGame/TalesOfMonkeyIsland'' Elaine says it to Guybrush when convincing him to help [=LeChuck=] in the quest for the {{Summoning Artifact}}s, spoofed as Elaine is Guybrush's ''wife''.

[[/folder]]

[[folder: Web Comics ]]

* [[VideoGame/MetalGearSolid Solid Snake]] [[http://smaaaash.net/154/ tries this]] in ''Webcomic/{{Smaaaash}}!!''

[[/folder]]

[[folder: Western Animation ]]

* ''{{Chowder}}'' episode "The Garage Sale"
-->'''Mung Daal''': We're not open yet.\\
'''Birdman''': Aw come on, let me look. I'll be your best friend!
** Chowder himself says this in "The Sleep Eater" when he tries to resist his hunger that's turning him into a hungry beast.
* ''SpaceGhostCoastToCoast''
-->'''Zorak''': Moltar, take off your helmet... show me your true face.\\
'''Moltar''': No.\\
'''Zorak''': C'mon... I'll be your friend.
* ''WesternAnimation/TheSimpsons'' has this exchange when Homer hired a guy to chase Sideshow Bob out of Town:
-->'''Man''': Now don't you fret. When I'm through, he won't set foot in this town again. I can be very, '''very''' persuasive. ''reloads his gun''\\
[''Scene change to a bar'']\\
'''Man''': ''whining'' C'mon, leave town!\\
'''Bob''': No.\\
'''Man''': I'll be your friend?\\
'''Bob''': No.\\
'''Man''': Aw, you're mean!
** One Butterfinger ad had Milhouse use this to try and get Bart to share his candy bar. Bart's response: "You already are."
* Inverted in ''WesternAnimation/TheGrimAdventuresOfBillyAndMandy'', where TheGrimReaper agrees to [[ChessWithDeath play a game for the life of the kids' hamster]] (despite them having nothing to negotiate with), and he is so totally confident of winning that he actually offers to be their best friend forever if they win. [[TemptingFate He'll]] [[ButtMonkey REALLY]] [[HumiliationConga regret]] making that offer...
* This is the plot of ''[[WesternAnimation/PBAndJOtter PB&J Otter]]'' story by the same name. The story features both Flick Duck and Munchy Beaver using this tactic on Peanut Otter to try to get his extra ticket to a radio show, endlessly trying to do his chores and give him favors to get the ticket in question.
* In "Franklin and the Trading Cards" on the AnimatedAdaptation of ''Literature/{{Franklin}}'', both Fox and Beaver behave in this manner to try to get Franklin to give them the coveted card, again offering favors and such.
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