What do you do when you are Married to the Job, and the job dumps you? Many breadwinners, almost always male, derive most of their sense of self-worth and achievement from their ability to bring home the bacon. The flip side is that getting laid off can deal a devastating blow to their self-esteem, and they may conceal the fact from their wife and kids, sometimes for months.
They still get up early, put on their business clothes, and leave for work—sometimes they'll even complain how exhausting office life is when they come home at the end of the day. But in the meantime they just drift about, desperately pretending to be one of the gainfully employed, until their lies come crashing down with ugly consequences (the ugliest case being Pater Familicide).
One of Despair's stories in The Sandman Endless Nights anthology is this. It is appropriately horrible. The poor fired guy is so afraid of telling his family that he turns to crime when his money runs out, while still pretending he's going to his old job.
Many of the Alex strips use this joke - frequently, the poor redundant banker spends the first three panels trying to spin the situation positively before breaking the news. When Clive was laid off, he spent the best part of a year pretending to still be employed. His wife figured it out when she was able to spend a whole night without being woken by Clive's boss texting him.
In the Axis Powers Hetalia fic What Your Country Can Do For You, Japan meets one of his citizens, who is too ashamed that he lost his job to go home and face his family. Japan takes the man home, where his wife is just happy to have him back and is sure he'll find another job.
Mr. Incredible, in The Incredibles — he starts working for Mirage (and Syndrome) after losing his insurance job, and he can't bring himself to correct his wife's assumption that he was promoted. He uses the money he earns from Mirage's group to support his family, while spending his time "at work" getting back into condition.
An inversion of this trope that makes it, if possible, even more sad: in Billy Elliot, Billy's father, who had been on strike for months, decides to resume work as a scab in order to pay for Billy's dance lessons, without telling his older son who is still on strike. But the latter recognizes his father going to work while picketing the mining facility. It's a heartbreaking moment for both of them.
In The Great Outdoors, Dan Aykroyd's character is a pompous and wealthy stock broker, but in the end he reveals that he lost his job some time ago, and his family is actually broke without their knowledge.
The premise of the Finnish film A Mans Job (Miehen työ) . The main character loses his job as a construction worker and doesn't dare to tell it to his depressed wife. He becomes a sex worker. Hilarity does not ensue.
Related to this trope: In House of Sand and Fog, the male lead doesn't want to admit to his family that the only work he can find is as a construction worker. He makes a point of wearing a suit and tie whenever he's at home.
Mona in Amreeka does the same thing, pretending to work in a bank when she's actually working in the fast-food joint next door.
Ashton Kutcher's character in Guess Who quits his job as a successful broker and insults his boss (a racist who insulted the protagonist's black fiancée) but doesn't want to tell his fiancée as they're going to meet her parents. Unfortunately, his pissed off boss spreads false rumors about him, which means he can't get employment (apparently, no employer fact-checks). Unusually, by the end of the film, he still doesn't have a job, but his future father-in-law accepts him after learning why he quit.
In Feet of Clay Sergeant Colon talks to a guy who's in this situation. It's foreshadowing as he was fired from the candle factory which has been using a (far too efficient, and insane) golem to make poisoned candles.
In A Tree Grows in Brooklyn, Johnny and Katie Nolan share the janitor work at a neighborhood school, until the night Katie gives birth to their daughter. Johnny, having been kicked out of his own house by her sisters, gets drunk (as per tradition) and totally forgets about going to work. Turns out a pipe burst and flooded the school, and he's gotten them fired. To hide it from Katie, he goes back to singing and waiting tables, which is what he did when they met, and never holds a steady job again. Presumably his cover couldn't have lasted that long (it was her job too, after all), but we're not told when he came clean or how she took it.
Cider with Rosie by Laurie Lee features a particularly humourous variant. Every time Loll's uncle Sid gets suspended without pay from his job as a bus driver, owing to his chronic drunkenness, he attempts suicide (but always in a manner following which he is assured to survive). His motive?
Loll: You see, Uncle Sid reasoned, quite rightly, that Aunty Alice's anger upon hearing of another suspension would be swallowed by her larger anxiety upon finding him again so close to death. And she never failed him in this, and always forgave him as soon as he recovered.
30 Rock: A flashback shows a young Liz accusing a Mall Santa of being a fraud, causing him to stand up, rip off his hat and beard, and shout, "You're right, little boy! I am a fraud! My wife still thinks I work at the bank!"
The Elephants' Graveyard: This is the premise for the two protagonists.
George and Mildred: George quit his job as a Traffic Warden, but kept going out each day dressed in the uniform so Mildred wouldn't find out. Mildred eventually found out when George's boss called up to tell her George had not returned the uniform.
Growing Pains: Mike is given a car as a gift from his parents. Shortly afterwards, Mike loses his job at World Of Burgers because he took the fall for a co-worker's mistake. Not wanting to tell his parents out of fear of losing the car, Mike got a job at a car wash but continued to pretend he still worked at World Of Burgers, including wearing his WOB uniform when he left/came home, and dumping grease on himself before he came home to really make it look like he'd been working there.
Heroes: A Japanese man who wanted to jump off a building because he couldn't stand to tell his family that he was fired. (Turns out he hated his job anyway and still couldn't bear to tell his family he wanted to quit.)
In the episode "Locked In", the Patient of the Week was doing this, using a friend's rat-infested basement to hunt for a new job.
Likewise the Patient of the Week of the episode "Recession Proof" was a wealthy real estate developer who lost it all in the housing market crash yet still maintained his successful facade to his wife by maxing out their credit cards and getting the most highly paid (and disgusting and/or dangerous) janitorial jobs available: crime scenes, septic tanks, mold removal, etc.
Law & Order: This was used in the franchise. A technically savvy guy was fired, but rather than confess it to his family, he stole another person's identity, mortgaged that person's house, and used the resulting windfall to bluff that he was still employed. The cops only found out after the other guy tracked down the thief and shot him.
Law & Order: Special Victims Unit: This was used in one episode, where the father had lost everything and killed his wife and was intending on killing his children before it was figured out it wasn't suicide.
Malcolm in the Middle: Inverted Trope in the season finale: Francis kept the fact that he was actually employed in a steady job a secret to his mom for reasons that are strongly implied to be spite.
Person of Interest: One episode introduced one of the PoIs as a man who had been laid off and tried to hide the fact from his family while looking for a new job. His desperation made him the perfect patsy for the murder of a politician who had eliminated the PoI's old job.
Revolution: In the episode "Soul Train", a flashback reveals that Tom Neville was fired from his insurance adjuster job the day of the blackout. He didn't tell his wife about it, but it became a moot point later that night, since the blackout occurred and caused everyone to become unemployed.
Domina no Do!: Takeshi's father lost his job months earlier but his wife and son only find out when Takeshi gets abducted. All this time he pretended to go to the office, when in fact he just spent his days in internet cafes.
In Great Teacher Onizuka this happens to the father of Prof. Teshigawara: he was a politician who got disgraced in an unspecified fallout in which he ended up being The Scapegoat. Said father still "goes to work" every day, acting as if he's still a big mover and shaker, and even his son doesn't know the truth.
Happens in Maison Ikkoku with Godai, who was laid off from his part-time job as day-caretaker and couldn't tell Kyoko about it.
In Persona 3, a nameless Salaryman you can meet around town loses his job and just continues his normal routine as if nothing happened to avoid the shame of his family finding out that he was laid off. He pulls it off for almost a year. In the Playable Epilogue, he tells you he managed to get a new job before they ever found out about his losing the first one.
In Phoenix WrightAce Attorney: Trials and Tribulations, Ron Delite is fired from his job as a security guard, and worries that his wife will leave him if she finds out, specially as she is a big spender and "treats money like it's water". So he does the reasonable thing and becomes a Phantom Thief while guarding the secret from her. In the end after she discovers all, she tells him that she wouldn't have abandoned him because she truly loved him.
The pilot episode of Family Guy, as shown in the page quote.
To elaborate, Peter, due to drinking too much at a Stag Party, was suffering from a hangover, and he ended up falling asleep at work. Note, his position at where he works is a safety inspector at the Happy-Go-Lucky Toy Factory, which means he was grossly negligent for sleeping on the job. He decided to try to keep it a secret, yet as his phrases indicate, he's doing a very bad job at trying to hide his being unemployed.
A variation involving teenagers and school occurred in The Proud Family: Penny and her friends ended up suspended from school the day after Valentines Day because of a graffiti mark on the school with Penny's name on it, which neither of them actually painted on. As they were unwilling to admit to their parents that they had gotten suspended from school indefinitely until they found the true culprit was exposed, Sticky instead had created a fake call from the principal regarding them winning an award (which as the last scene revealed, was fake from the start) in place of the suspension call to hold the parents off until they caught the culprit responsible (a crippled student who is later revealed to not be a nice kid) and thus got back to school. It bites them in the butt later on.
Variation: Homer's life coach in The Simpsons persuaded him to quit his job at the nuclear plant and apply for a better position at a copper piping company. He didn't get it, but couldn't bear to tell his family.