History Recap / TheSimpsonsS29E13ThreeScenesPlusATagFromAMarriage

* TrueArtIsIncomprehensible: InUniverse. Bart ruins a Jeff Koons-ish giant balloon rabbit by puncturing it with a pin and reducing it to a pile of rubber, [[DistinctionWithoutADifference but an identical pile of rubber with a sign reading "futility" is a smash]].

* AMistakeIsBorn: Bart, as always, but {{Averted}} with Lisa. While previous episodes implied her to be an accidental conception, here she's the product of Homer and Marge's decision to give Bart a sibling.

* PetTheDog: Humorously {{Subverted}}. Homer spends a lot of the episode knocking "baby Bart," but it turns out that he [[ScrewTheMoneyIHaveRules gave up a potentially lucrative career]] due to the company's prejudice against its employees having children. Upon learning this, Bart is ''furious'' that Homer "chose [him] over money" and administers a BitchSlap.

** Up to this point all three of the Simpson kids were unplanned, though Lisa was the only one of the three who wasn't [[LawOfInverseFertility actually conceived at a bad time]]. This episode has Homer and Marge deciding to have a second child on the theory that Bart's bad behavior is down to OnlyChildSyndrome.

** In "I Married Marge," the episode detailing the circumstances of Bart's birth, Bart was conceived when Homer had a low-paying job at a miniature golf course and Marge (herself seemingly unemployed) still lived with her parents, forcing him to scrounge for money any way he could until he finally landed his first job at the power plant, making him able to support a wife and a child just in time for Marge to give birth. Here, Homer and Marge live together on two incomes before Bart's conception, with Marge working at the ''Springfield Shopper'' and Homer inhabiting a promising role at a startup called Flashmouth--jobs they retain after Bart is born until his presence in their lives causes both jobs to be lost. The power plant is never brought up.

** In "I Married Marge," the episode detailing the circumstances of Bart's birth, Bart was conceived when Homer had a low-paying job at a miniature golf course and he and Marge (herself unemployed) still lived with their respective parents, forcing him to scrounge for money any way he could until he finally landed a stable job at the power plant just in time for Marge to give birth. Here, Homer and Marge live together on two incomes before Bart's conception, with Marge working at the ''Springfield Shopper'' and Homer inhabiting a promising role at a startup called Flashmouth--jobs they retain after Bart is born until his presence in their lives causes both jobs to be lost. The power plant is never brought up.

** In "I Married Marge," the episode detailing the circumstances of Bart's birth, Bart was conceived when Homer had a low-paying job at a miniature golf course and he and Marge (herself unemployed) still lived with their respective parents, forcing him to scrounge for money any way he could until he finally landed a stable job at the power plant just in time for Marge to give birth. Here, Homer and Marge live together as a DINK (Dual Income, No Kids) couple before Bart's conception, with Marge working at the ''Springfield Shopper'' and Homer inhabiting a promising role at a startup called Flashmouth--jobs they retain after Bart is born until his presence in their lives causes both jobs to be lost. The power plant is never brought up.

* OnlyChildSyndrome: When they go to him for counseling on how to deal with Bart, Reverend Lovejoy shows Homer and Marge a pretty scaremongering video on the subject (complete with a disclaimer asserting that SiblingRivalry may result from the introduction of a second child in [[BlatantLies rare cases]]).