A previous colleague of mine had plenty of years in the industry as a Java developer, but somehow still had absolutely no idea what he was doing. We used to send screenshots of his PRs to each other just to give our eye balls something to roll about - I have never seen anything like it, anywhere.

After multiple warnings of never delivering a single thing he eventually "voluntarily" left the company. He now works at a school teaching programming to students. The circle is complete.

A while ago I was agressively interrupted by a colleague while chatting to another (more sane) colleague as he overheard us merely discussing using message queues to solve some issues we were facing. I was told these decisions were not up to me and had to be "lifted to a higher level and discussed amongst the entire team".

8 months later we all receive an email where the same guy proposes the exact same solution to solve our issues.