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🎃 10 Scary Lines of Code I Wish I Never Wrote 💀

Sylwia Laskowska on October 31, 2025

Ever opened your old project, looked at a line of code, and thought… “Who the hell wrote this mess?” …and then Git calmly whispered: “It was ...
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Giorgi Kobaidze

I was looking for DELETE FROM Users; or rm -rf /

I'm glad I didn't find them. But git reset --hard HEAD~1 is also pretty scary.

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Sylwia Laskowska

😂 Trueee! “DELETE FROM users;” is pure horror-movie-level code.
But yeah… git reset --hard HEAD~1 — that’s psychological horror.

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Manpreet Singh

I once wanted to do git rebase -i HEAD~4 and for some reason I wrote git reset --hard HEAD~4

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Sylwia Laskowska

Haha feels like
“I wanted to edit history.”
“History decided to delete me instead.” 💀

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Milad

Lol i thought i was the only one who was scared of the 1st and 2nd one 🤣

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Sylwia Laskowska

Hahaha same!
Those two lines are the reason I triple-check every terminal command now 😭

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Ben Halpern

Happy halloween!

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Sylwia Laskowska

Happy Halloween! 🎃👻 Thanks for stopping by!

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Nikola Perišić

git stash clear

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Sylwia Laskowska

git stash clear
→ also known as:
“I didn’t need those changes anyway… right? RIGHT??” 😭

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Nikola Perišić

exactly! 😂

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Cesar Aguirre • Edited

For me, it was SELECT * FROM dbo.HugeTableWithoutIndexes WHERE DATEDIFF(DAY, ADateColumn, @AParam) = 0 Boom! A server on fire and users calling!

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Sylwia Laskowska

This is the kind of query that doesn’t just run — it hunts CPUs for sport 😭🔥

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shemith mohanan

Haha this hit way too close 😂
Every developer has that one “temporary fix” still haunting production — mine’s a console.log buried so deep I’m scared to delete it now.
Love how you turned cringe moments into a growth reminder — it’s the perfect Halloween post for devs 👻💻

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Sylwia Laskowska

😂 omg yes — the haunted console.log that no one dares remove
At this point it’s not debugging, it’s a stability ritual
Thanks for the love! 👻💻

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Waffeu Rayn

Using the rm -rf, using Ubuntu, i deleted all my UI on the system and was just able to work as if it was a server with just terminal

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Sylwia Laskowska

Hahaha I love Linux and its whole
“You wanted power? HERE. HAVE ALL THE POWER.”
I swear, everyone who survives an rm -rf incident instantly gains +1 seniority 😅

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Waffeu Rayn

You're right. You learn the hard way

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Aaron Rose

7️⃣ Array(10).fill({})
Ten objects, one reference. Ten bugs, one developer crying 😭...love it! hahahaha

Happy Halloween, Sylwia! 🎃

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Sylwia Laskowska

That line of code gave me more bugs than my entire QA team combined 🪲😭
Happy Halloween, Aaron!

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Chandrashekhar Kachawa

Haha😀
we all do such mistakes

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Sylwia Laskowska

Haha exactly 😄
If you’ve never broken something by accident, are you even a real dev? 😅

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Chandrashekhar Kachawa

Indeed mam

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Dario Mannu

Who's never done this?

try {
 // something...
} catch(e) {}
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Sylwia Laskowska

Literally every dev ever 😂
The real horror isn’t the empty catch — it’s when you forget you wrote it… and it silently eats every error for 6 months 😭

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Alexu

Sometimes I try to find the formula for calculating a percentage, and I write a comment for the rule of three, like this

// a 100%
// b x
// x = b * 100 / a

I'm not very proud of having to write it down so I can visualize it

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Sylwia Laskowska

OMG yes 😂
I swear, every time I have to calculate a percentage my brain goes:
“You knew this in 4th grade. Not anymore.”

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Elizabeth Ajileye

Had to stifle my laughter reading this one 😂😂
Growth really looks like the embarrassing code we wrote two years ago 💀

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Sylwia Laskowska

Hahaha yesss 😅
Nothing shows progress like looking back at old code and thinking
“wow… I was confidently wrong back then” 💀

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Elizabeth Ajileye

😂😂😂
Happy for growth

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Miriam
border: 1px solid red;
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I know right? background-color: red; is obviously the better choice. Still doing it, I'm not ashamed :p

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Sylwia Laskowska

border: red; = “something’s off”
background: red; = “everything is on fire but at least I can SEE it” 🔥😂
Respect. Zero shame.

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Gevik Babakhani

I just love #5 and #8. Especially #5 when it is committed in git and deployed to a public facing national website 😂😂😂

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Sylwia Laskowska

Hahaha yesss 😂
There’s nothing like the adrenaline of realizing your “temporary fix” is now serving an entire country in production 🫠

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Lotfi Jebali

i can relate to the console.log ones haha

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Sylwia Laskowska

I always say I’ll remove them “later”.
Spoiler: later is now part of the legacy codebase 😂

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Anh

Awesome Sylwia, happy halloween!

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Sylwia Laskowska

Thanks a lot! Wishing you a bug-less Halloween 😄🎃

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psalajka

You can still recover from 'git reset --hard HEAD~1' with 'git reflog'. Now try 'crontab -r' — because apparently '-e' means edit and '-r' means nuke everything, no prompt. :-D

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Sylwia Laskowska

That’s the kind of command where you press Enter and immediately hear distant screaming — and then realize it’s your own 😅

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TheBitForge

👍

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Shohidul islam

very chatgpt content

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Sylwia Laskowska

“Very ChatGPT content” — perfect!
I’ll add that to my résumé right under “professional code regret collector” 😎

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Aloybaik

"🔥 Coba sekali, pengen lagi. Sensasi menang di JO777 emang beda!"

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Sylwia Laskowska

It’s November 4th and this Halloween post just refuses to die 🎃
Honestly at this point it has more undead energy than any zombie movie.
Thanks for all the terrifying code stories — keep them coming 👇