->''"Cyrene? 'ow am I s'posed ta work on [[DeathWorld dat burny chunk 'o soot?]] It ain't like I can hides in da lava! Mork knows, [[NoodleIncident I ain't tryin' DAT trick again]]."''
-->-- '''Spookums''', ''VideoGame/DawnOfWar: [[ExpansionPack Retribution]]''

A stock phrase used after the hero has done some daring do that obviously was very painful and/or taxing. In saying this, the Hero is acknowledging that he is not open to repeating the experience as he tries to recover.

It's a form of LampshadeHanging to the kind of exaggerated heroics often displayed in action shows. Can also be used tongue-in-cheek in response to a particularly absurd suggestion.

Contrast with WasntThatFun.

* In a particularly {{Squick}}-y example from a Quizno's commercial, a talking oven tries to coax a guy into doing some unnamed act. The man looks down at his crotch and says, "I'm not doing that again. That burned."

* Used in the movie ''[[Series/{{Jackass}} Jackass: Number Two]]'', during the "Medicine Ball Dodgeball (in the dark)" stunt. After asking how it turned out after getting beaned every which way with medicine balls, Chris Pontius says, "That was fun. Let's never do that again."
* Bobby in ''Film/XMenTheLastStand'' after being phased though the ground and back out again.
* ''Film/MortalKombat'': Johnny Cage has a bad day during filming because the stuntmen kept screwing things up and didn't want to redo the scene again.
* in PiratesOfTheCaribbean On Stranger Tides, [[CrazyAwesome Jack Sparrow]]'s response to blowing up a lighthouse (and nearly himself) is "Did everyone see that? Because I will NOT be doing it again!"

* A doe walks out of the woods and says, "[[DoubleEntendre That's the last time I do that for two bucks]]!"

* Gets used several times in ''Literature/{{Animorphs}}'', usually involving Marco.
-->'''Marco:''' That was fun. Let's never, ''ever'', do it again.
-->'''Tobias:''' Ever.
-->'''Ax:''' Repetition of that activity would be a very bad idea.
** In that particular case, morphing cockroaches and sliding down a spiral handrail for several flights of stairs, a ride a skateboarder would have traded both kidneys for.
** Ax also used this StockPhrase ("I will not do this again") in a more dramatic, ShootTheDog context, when the plan involved him capturing Chapman and interrogating him in the ToThePain style for hours on end.
** When the kids morph ants - the ant morph has some ''very'' disturbing side effects.
** Cassie also says this when she leaves the Animorphs for a brief period, referring to a particularly grisly battle.

* Jack Harkness casually drops this in while referring to [[MisterSeahorse pregnancy]] in the ''Series/{{Torchwood}}'' episode "Everything Changes".
* In one episode of ''WKRPInCincinnati'' Herb gets talked into pretending to be gay and hitting on another guy. The attempt fails, and when he gets back: "I am ''never'' doing that again! I get enough rejection from ''women''!"
* In episode five of ''Series/{{Sherlock}}'', during a typical 'bored Sherlock rant':
-->'''Sherlock:''' It's either that, or Cluedo.\\
'''John:''' ''Oh'', no. We are ''never'' playing that again!\\
'''Sherlock:''' Why not?\\
'''John:''' Because it's not possible for [[SuicideNotMurder the victim to have actually done it]], Sherlock!

* Taken to an extreme by Sharwyn in ''NeverwinterNights'': [[DeathIsCheap "Dying was unpleasant, to say the least. Let's not do that again, shall we?"]]
* In ''VideoGame/PaperMarioTheThousandYearDoor'', if you take Flurrie through the [[spoiler:plumbing via the toilet]] in Chapter 3 when [[spoiler:you're taken into a ''more'' dilapidated locker room than the one you were in at first]], she requests that she never does that again.
* In ''KatawaShoujo'', one H-scene in [[spoiler: Emi's route]] have her and Hisao [[spoiler: trying anal sex.]] It turns up they both find it uncomfortable and swore to never do it again.
* Nob Spookums from {{Dawn Of War}}: Retribution.
--> "It ain't like I can hides in da lava. Mork knows, I ain tryin' DAT trick again!"
* At one point in ''VideoGame/TheCurseOfMonkeyIsland'', Murray the skull jumps out at Guybrush, landing painfully on the ground. He groans that he's not going to do that again.
** At the beginning of ''VideoGame/EscapeFromMonkeyIsland'', pirates have invaded Guybrush's ship and tied him to the mast. Guybrush needs to kick over a blazer of coals and kick one onto a cannnon to sink the other ship. Instead, you can choose to kick one of the coals at the pirates offscreen, who retaliates by throwing a knife next to Guybrush's head. Quote Guybrush, "Better not try THAT again!"

* [[WebAnimation/HomestarRunner Strong Bad]] says this after he removes his mask to prove that it is, in fact, his face, and that there's nothing but bone, muscle, and veins beneath it. Naturally, he does this while sitting in a high-backed chair, so the audience only sees a tiny, tiny sliver and hears the screaming.

[[AC:Web Comics]]
* GoblinHollow: A teleportation incident [[http://www.rhjunior.com/GH/00169.html here]]

* In a "Frogger" episode on ''SaturdaySupercade'', Frogger used his tongue to prevent a fatal accident. Unfortunately, the only thing he can latch onto is a cactus and afterward, his tongue is painfully perforated with cactus needles. Cue trope title.
* In one ''WesternAnimation/JusticeLeague'' episode, ComicBook/{{Metamorpho}} [[DisneyDeath apparently sacrificed his life]] to stop a monster. Fortunately, Metamorpho is able to reconstitute himself with a satisified but weary comment, "I'm not doing that again."
** And when the Flash finally [[IAmNotLeftHanded hits top speed]] to defeat the BigBad and the rest of the JusticeLeague pulls him from the brink, we get the page quote. Earlier in the same episode, this is his reaction to the way he took out his evil, Braniac-generated doppelganger (punching through its chest and vibrating until it exploded, knocking him for a loop in the process).
* In the ''WesternAnimation/ChallengeOfTheGobots'' episode "Et Tu, Cy-Kill?" Leader-1 ends up having to fly in jet mode, at jet speeds, through a huge corridor filled with stone columns, dodging all of them. Afterward he [[TransformingMecha transforms]], falls to his knees, and says, "I couldn't do that twice."