Found a bug that can be fixed with a 20 minutes hack. Spent 2 weeks refactoring in order to implement a proper fix.
Ran blame on a stupid piece of code to find out own name on it.
Did a quick one liner fix that broke the app disastrously.
Fixed a bug. Thoroughly tested the fix and satisified it is working, deployed to production breaking the rest of the app.
Spent 2 hours fixing code that never gets executed.
Spent 2 hours trying to figure why the fix is not working only to find out the source code was not compiled and the code ran without the fix.
Pushed all the bugs in the sprint to the other team.
Submitted a PR that alters a single character
Had 3 days for the task. Spent 2.5 days optimizing the IDE color theme.
Deployed code with local path hard coded.
Checks to see who wrote such a good SO question only to discover own name.
Deployed a new feature that does not work at all. Even tested it before.