We had this new guy working and we assigned him some work to do. We gave him some time to find the way into the code and figure things out on his own.

Instead of doing that, he wrote a paper of 20 pages why WPF would be way better than what we are doing now. There were many flaws in his document as well. Also on day 2 he used resharper to format some code file. Bye bye annotate! His argument was that resharper knew better. But, our code also uses some reflection, so that got broken. He didn't knew what reflection was and assumed resharper "fixed" it.

He doesn't work here anymore now, he felt he wasn't taken seriously. This is just one of many examples of him though 😂