Before or after tax?

Run to the neighbours and try to sell some DVDs

Clock in at work. 34 minutes later I earn $40.

Easy. Sell a gun on FB Marketplace for a ridiculously low asking price. It would sell faster than I would be banned.

Get a loan from the local loan shark.

Go to the roulette table at the casino. Bet it all on 32.

Lose my bet.

Go back to the local loan shark for $40.

Bet the $40 at the roulette table.

Lose.

Repeat until either I get the money to pay the loan shark and save my family. Or I gues it's RIP for my family and my kneecaps.

Grab all the canned stuff I made at home, and either just ask my mother to buy all them for 40 (a family member can pay me, right?) or convince the family friend who loves the candied jalapeños to buy them.

Rob a mcdonalds, only take $40. Explain myself after and pay it back.

Get laid, make money. I just need one.

Sell some stocks I guess.

Unless you mean my net worth has to go up $40? In which case, I'll probably look for someone who would be willing to pay me $40 ahead of time to teach them some machine learning over some negotiable span of time. Or to build a website or something. There are lots of businesses in the area that could use it, and $40 is insanely cheap for something like that.

Sell Pokemon stupid cheap

am I already scheduled for a shift? I make that hourly.

sell tickets to an explosive event. then just keep the money.

Tell my family they have a new problem to deal with.

Maybe walk down to the pier and play a guitar with an open case. I could probably get more than $40 from scrap copper. I could maybe talk a used car lot into letting me clear some headlights for twice that much. Hawking some expensive junk on Craig's list might also work. Pawn some tools.