Tldr: I think I made a company fire some dev a year ago.
I was working for this company remotely, alone, on a very big and old legacy php project where they still used echo '<code><code/>'; and i was a very junior junior front end developer, needed to make the website work somehow (whole new design). They brought in a random guy to work with me, and we started working.. I was using bitbucket to version my changes, and I asked him to do the same. He tried pushing his changes once and then practically never again because he started working in files that i was working on and there were git conflicts, and he gave up, even though i asked him to do that... he then statted using general classes to style the page (like .color) with absolute positioning and it broke everything everywhere. He then proceeded to minify half of the php files 'because of performance', I remember talking to other few people in the company and he disappeared a few more days later. I never finished the project because they stopped it randomly and i think i got him fired even though he could've continued working in the company