In this homage to such movies as ''Film/{{Go}}'' and ''Film/RunLolaRun'', Homer's severed thumb, Lisa's mad rush to school, and Bart and Milhouse encountering the local Mafia are interconnected to show how each of these events are related.

* AcCENTUponTheWrongSylLABle: Linguo pronounces "error" as "err-OAR".
* AchievementsInIgnorance: Marge accidentally caused the conflict of Bart's subplot by thinking "123 Fake Street" was a, well, fake street.
* AnArmAndALeg: Homer's severed thumb.
* BrickJoke: When Marge calls 911 for help during the first shot, Chief Wiggum is more concerned about arresting Marge than helping Homer so she makes up a fake address named "123 Fake Street" to lure him away. The third shot reveals that the address really exists.
** An inverted example: "Homer's Day" sees Dr. Nick bemoan the burning of he clinic by remarking "''In''flammable means ''flammable''?! What a country!" During "Bart's Day", after Milhouse's firework laden bike tire flies into Captain [=McCallister=]'s room and lands onto an ether tank:
--->'''Dr. Nick''': Don't worry, it's inflammable! (tank explodes) ...let's keep this our little secret.
* CommercialBreakCliffhanger: "Lisa's Day" ends with Marge hitting the brakes as Bart (who was last seen running off to answer the door during breakfast) suddenly emerges from a manhole. Not only do we have to wait through the commercials, we also had to watch "Bart's Day" to see what led to this situation before it's resolved. Bart turns away from the truck anticipating impact, only to be lightly hit by it as comes to a complete stop. "Ow. Mom...!"
* ContrivedCoincidence: Everything that happens to each character is a direct result of something (usually stupid) that another character has done, always with no idea that their actions are influencing the rest of the family. Eventually everyone's paths have crossed and re-crossed until, at the end of the episode, everyone's in the same situation.
* DespairEventHorizon: Homer gives up on saving his thumb when he realises he can't reach Shelbyville in 20 miles on foot, so he promptly dumps Moe's pickle brine into the trash.
-->'''Homer:''' ''(to his severed, shriveled thumb)'' Well, friend, we always knew this day would come. Say goodbye to your brother.
* DecoyProtagonist: While the episode depicts the events of Homer, Bart and Lisaís day it is actually a Marge episode as she is the one who holds everything together and makes everything happen. She kicks off everything with breakfast, cuts off Homer's thumb (by accident), starts up the 123 Fake Street which leads to Bart's undercover storyline, does all the driving for both Homer and Lisa, and itís her fault that Homer has to hitchhike and then walk. And itís ultimately her who saves the day by tossing Linguo into the fire.
* DiesWideOpen: After Linguo "dies", Homer pushes his eyes shut.
* EvilLaugh: Martin has one when he believes Lisa will miss the fair.
* FrenchJerk: The West Springfield counterpart of Lisa's classroom has a French class, who laugh at her predicament.
* GrammarNazi: Linguo is programmed to correct grammar.
-->'''Homer:''' Let's put him to the test. "Me like beer."\\
'''Linguo:''' ''I'' like beer.\\
'''Homer:''' Aww, [[AmbiguousSyntax he]] [[ComicallyMissingThePoint likes beer]]. (''pours beer into its mouth'')
* HiddenWire: Wiggum hooks Bart to one to capture the firework smugglers.
* IronicName: Fake Street is real.
* LogicBomb: Gangster speak is too much for Linguo to handle.
-->'''Louie:''' Hey, they's throwing robots at us!\\
'''Linguo:''' They ''are'' throwing robots.\\
'''Legs:''' (''to Fat Tony'') He's disrespecting us. (''to Linguo'') Shaddap you face!\\
'''Linguo:''' Shut up ''your'' face.\\
'''Legs:''' Wassamatta you?\\
'''Louie:''' You ain't so big!\\
'''Legs:''' Me and him are gonna whack-a you in Labonza!\\
'''Linguo:''' Bad grammar overload... Error! Error!
* LogoJoke: The audio for the Gracie Films logo is replaced with this:
-->(''West Springfield students laugh'')\\
'''French Teacher:''' ''en francais''...\\
(''students laugh in snooty manner'')
* NakedPeopleAreFunny: The title screen for "Homer's Day" is Homer losing the towel around his waist as he dashes off to get dressed for breakfast.
* OnceMoreWithClarity: During "Lisa's Day", Chief Wiggum unwittingly lets Fat Tony know there's someone with a bug to record his conversation. Afterwards, Wiggum, Lisa and the viewers hear gunshots from Fat Tony's side. "Bart's Day" reveals to the viewers the noise to be some fireworks lit by Bart to use a distraction while he and Milhouse escape.
** "Bart's Day" serves to explain why Lisa's bike went missing[[note]]Bart took it[[/note]] and why Bart popped out of a sewer manhole[[note]]he and Milhouse were escaping from the mobsters[[/note]] at the end of "Lisa's Day", and why Dr. Nick's clinic burned down[[note]]a failed attempt at making Milhouse's bike be firework powered[[/note]] and Linguo exploded at the end of "Homer's Day"[[note]]it was overloaded by the mobsters' dialect[[/note]].
*** Likewise, "Lisa's Day" serves to explain why Marge left Homer at Moe's[[note]]Lisa asked her to take her to school, and Marge overheard Homer [[NoodleIncident going off on the Blue Man Group again]][[/note]] and why Cletus' truck got stolen during "Homer's Day"[[note]]Lisa and Marge, having snuck into the back, stole it[[/note]].
* OnlySaneMan: The episode ends with Mr. Teeny [[BreakingTheFourthWall calling out the nonsensical nature of the episode, begging for the viewers to do something]].
* ParentheticalSwearing: When Marge accidentally gets into a rear-end collision with Rainier Wolfcastle's Ferrari, she mutters, "Aw, doodlebugs."
* RecycledSet: An animation version. Lisa is mistakenly dropped at West Springfield Elementary, which looks exactly identical to Springfield Elementary. One of the students notes that all schools in the area were drawn from the same floor plan. This is TruthInTelevision in some areas, especially areas with a lot of schools built at the same time.
* RoboSpeak: Spoofed with Linguo, who is programmed to be a grammar-correction robot, yet he speaks like this when he's not repeating grammar-corrected sentences.
-->'''Lisa:''' Almost done. Just lay still.\\
'''Linguo:''' ''Lie'' still.\\
'''Lisa:''' I knew that. Just testing.\\
'''Linguo:''' ''(correcting Lisa)'' Sentence fragment.\\
'''Lisa:''' "Sentence fragment" is also a sentence fragment.\\
'''Linguo:''' Must conserve battery power.
* ShoutOut:
** To ''Film/RunLolaRun''.
** When Homer is pouring beer into Linguo's mouth, making him short-circuit, Homer explains "I thought he was a party robot.", which is how Bender has been described on ''WesternAnimation/{{Futurama}}''. Linguo even looks a bit like Bender.
* SnarkyInanimateObject: Linguo, especially to Legs and Louie when he corrects their mob slang.
* SomethingCompletelyDifferent: Much like "22 Short Films About Springfield," this episode tells its story in interconnected vignettes. Unlike "22 Short Films About Springfield," this episode focuses on how Homer getting his thumb cut off, Lisa ending up in the wrong school, and Bart and Milhouse running afoul of Fat Tony and his men are related to each other.
* TakeThat: Chief Wiggum has Bart record the mobsters over a Music/HootieAndTheBlowfish album because "It's cheaper than blank tape."
* ThreeShorts: The episode is split into "Homer's Day", "Lisa's Day", and "Bart's Day".
* WhatHappenedToTheMouse: What happened to Maggie in the episode.
* WhyWeCantHaveNiceThings: Lisa's reaction to Homer trying to "feed" Linguo beer.