Junior Programmer Removes "Unnecessary" Code

That moment when a junior dev proudly announces they've "cleaned up" the codebase by removing "unused" functions, and suddenly the entire production environment collapses like a tree cut from its support. The code wasn't commented because the senior who wrote it was too busy putting out other fires to document why that "useless" function was actually holding up the entire architecture. Five minutes before the demo, everyone's frantically digging through Git history trying to figure out what the hell that Pink Panther function actually did.