Production Code: [=AABF04=]\\
Premiere Date: December 6, 1998

While driving home from a Old West tourist trap, Homer ignores Grampa Simpson's pleas to let him use the bathroom, which causes the old man to blow out both of his kidneys. With Grampa at death's door, Homer decides to give a kidney to his father -- then runs off when he becomes afraid of what being an organ donor will do for him.
!!This episode contains examples of:

* AllPartOfTheShow: One of the actors at the attraction is a sickly alcoholic who asks for help and then falls in a tub and presumably ''drowns''. All of the tourists (save for Lisa) do in response to this is [[NoSympathy laugh at him and snap pictures.]] Even Bart replied back to his sister when she asked if someone should help him that the guy knew what he was doing.
* AreWeThereYet: A variant.
--> '''Grampa:''' Am I dead yet?
--> '''Marge:''' No.
--> '''Grampa:''' How 'bout now?
--> '''Marge:''' No.
--> '''Grampa:''' Now?
--> '''Marge:''' I'll tell you when you're dead, Grampa.
--> '''Grampa:''' Thank you.
* ArtisticLicenseBiology: A "kidney blowout" due to holding in urine for a long time is physically and medically impossible, as the kidneys (much like the liver) is just a filter that makes body waste. If any organ in the urinary tract was going to suffer from having too much urine in it, it would be the bladder (and he would have pissed himself before dying of sepsis). And if Grampa's urinary system was compromised and Homer didn't want to donate a kidney, couldn't they have put Grampa on dialysis until a donor could be found?
* ChristianityIsCatholic: When Marge asks Reverend Lovejoy to perform the last rites for Grampa, Lovejoy retorts, "That's Catholic, Marge. You might as well ask me to do a voodoo dance."
* ContinuitySnarl: Grampa is said to have two functional kidneys, but in [[Recap/TheSimsponsS2E17OldMoney "Old Money"]][[note]]the season two episode where he dates a woman named Bea who dies and leaves him all her money, which he uses to make the Retirement Castle a better place[[/note]], he told Bea he had one kidney (unless he meant one that was functioning).
* DirtyOldMan: Played with by Grandpa. While in the saloon and after one of the robotic can-can dancers' [[ItMakesSenseInContext plastic butt flies off and lands next to him]], he pinches it and calls it "sweet cheeks", only for a plastic hand come flying by and slapping him across the face.
* EvenEvilHasStandards: The Frenchman may have stolen his accordion (actually a concertina) from a blind monkey, but he (and the other passengers on the ''Ship of Lost Souls'') would never dream of leaving their fathers to die in the hospital after promising them a kidney.
** Neither would Bart, a boy once hailed as "America's Bad Boy."
** Even Dr. Hibbert, who usually laughs at inappropriate moments, is upset by the turn of events. He does laugh, but there's no humor in it and no joy in his expression.
* GhostTown: The family visits one converted to a tourist trap in the first act.
* GreatWhiteHunter: A Englishman dressed in the usual fashion is among the passengers of the ''Ship of Lost Souls'', and mentions his story has tigers.
* HandicappedBadass: The bartender, apparently.
--> '''Homer:''' Hey, robot! get your metal ass down here!
--> [the bartender walks down to Homer]
--> '''Bartender:''' First of all, I'm not a robot. And second, I got this metal ass in 'Nam, defending this country for lazy jerks like you. [[MoodWhiplash Now what'll ya have, pard'ner?]]
* {{Jerkass}}: A lot of viewers dislike this episode, as it shows Homer at amongst his most callous (bailing during his father's kidney transplant operation twice). [[EvenEvilHasStandards Even the "Ship of Lost Souls" calls this over the line.]]
** JerkassHasAPoint: His fears were pivoted by the fact Dr. Hibbert (and everyone else) outright lied to him about the dangers of the operation so he'd agree. When they can't make him donate willingly, Hibbert outright steals his kidney while he's unconscious. While it's {{Dirty Coward}}ice at its finest, would you trust your body in the hands of a quack that deceives and outright mutilates you without your consent?
* LaserGuidedKarma: Homer getting crushed by a car and having his kidney removed while unconscious.
* LastRequest:
--> '''Homer:''' If I die during the operation, will you do one thing for me?
--> '''Marge:''' Oh, anything sweetheart!
--> '''Homer:''' [[RoaringRampageOfRevenge Blow up the hospital.]]
--> '''Marge:''' Hrmmmm. Well, [[IGaveMyWord I said I'd do it]], so [[HonorBeforeReason I guess I'll have to.]]
* MorallyAmbiguousDoctorate: Homer's cowardice is partially pivoted by the fact Dr Hibbert lied about the dangers of the operation to make him go through with it. When he fails to get Homer to willing go through with it, he outright ''steals'' the kidney from him while he's unconscious.
* MyCarHatesMe: Homer's car breaks down and won't start just outside the Retirement Castle.
* NeverMyFault:
--> '''Homer:''' This is everyone's fault but mine.
* NoodleIncident: A whole Ship of Lost Souls full of them, barring the French man with the accordion (see EvenEvilHasStandards above) and the woman who robbed a bank with a frozen loaf of bread.
** The Creator/PeterLorre lookalike mentioned that he did something that got him ban from a car wash, though we never find out what it was.
* PottyEmergency and PottyFailure: PlayedForDrama; because Homer wouldn't stop to let Grampa use the bathroom, Grampa's kidneys exploded and is now near death.
* ScrewPolitenessImASenior: Grampa acts rudely towards the bartender, but when he mentions that, like Grampa, he's also a military veteran, Grampa simply says "Up yours, hippie!"
* ShoutOut: Grampa [[ZombieGait slowly walking]] to Homer's car while he [[MyCarHatesMe tries to restart it]] parodies ''Film/NightOfTheLivingDead1968''.
** The robot cowboy chasing the robot hooker on a balcony is based on a similar scene in the original ''Ride/PiratesOfTheCaribbean'' Disneyland ride.
** The passenger wearing a tuxedo looks and sounds just like Creator/PeterLorre.
** One of the shops on the pier that Homer escapes to is a taffy shop named ''[[Literature/MobyDick Call Me Delish-mael.]]''
* WantedPoster: Bart gives Marge a flyer of Homer, who is apparently wanted for indecent exposure in the [[NoodleIncident short time he and the family are at the spot.]] While Marge initially believes that it was just pretend, Bart then points out [[OhCrap that actual posters are being distributed of Homer.]]