Freelance project I was working on was deployed. Without my knowledge. At 11pm. Their in-house "tech guy" thought that the preview build i gave them was good enough for deployment. Massive bug, broke their api endpoints.
Got a call at 2 in the morning,asking for a fix. I told them how it was their fault and the App they deployed had TESTING written right on the main screen.
They promised additional payment to get me to fix it asap.
Went through the commit history (thank goodness their tech guy knew git, fuck him for committing on production though) and the crash reports.
Removed three lines. All became right with the world again. 😎