i was asked to start a new project, and another dev was brought onto the team shortly after. as soon as he joined, straight away he started an entirely new project and worked on it through the whole weekend, then came back on monday and just sort of pasted his files into/over the code i had already started and was working on, with no regard for folder structure or naming conventions or anything. his work was even split between 2 almost identically named namespaces (both of which were completely different to the existing project namespace) and his shit broke everything i did in the first place. the cherry on top is that none of his work was even functional, it was purely dummy/mockup web pages that weren't linked to any sort of backend.

when i asked him wtf he thought he was doing, he kept saying "i didnt touch your code" and refused to acknowledge that pasting a project over a different project can break stuff, then said it "wasn't his fault that i'm slow and not keeping up". and just kept saying vague bullshit about how i have to do it his way because he "has more experience"

he had no idea what my previous experience was, he had never asked and i had never told him, he just decided that he had more experience than me.

i dug through the shit and found out that he didn't just break my work, he had actually purposely deleted it when he realised it was getting in the way of his spaghetti. i showed him the commit and confronted him with it and all the cunt said was "well the good news is, you know the fix" and kept trying to dismiss me in the most disrespectful ways he could think of. i eventually snapped at him (long overdue at this point) and told him that any experienced developer would not commit code that didn't even fucking compile, especially when they're the one who broke it, and that he needs to grow up. of course he then complained that i was being unprofessional.

our manager decided we should go with fuckfaces """code""" without even looking at the work either of us had done, purely because fuckface is older than me and that's how the world works.

in the end i just told my manager that i refuse to work with the guy and he could either take him or me off the project (guess who he picked) or i quit.

after a few months of the guy failing to deliver any of even the basic functionality that was asked for, the entire project got scrapped, and the dude just quit once everyone realised he was literally just larping as an experienced dev but couldn't accomplish simple tasks.

i never received an apology from anybody involved.