I once had a colleague who had a favourite interview question, it had something to do with graph data structure and would always ask the question, many times candidate would reply and get rejected, strangely enough after a while all those candidates who replied got rejected. So we all gathered around him to work through what questions he was asking. We got to this question, and working with him on this question for a while we realised his solution to his own problem was wrong.
Turns out he was using this one question to reject people his whole career.
It was a humbling experience to all of us, to recheck everything before we asked questions. Most of the candidates you interview are perfect hires. Some times its you who is wrong.
>strangely enough after a while all those candidates who replied got rejected.
That also seems like a bad interview strategy. Make a mistake and you're out? Did you have so many perfect people to hire that you could just sort out almost everybody?
Turns out he was using this one question to reject people his whole career.
It was a humbling experience to all of us, to recheck everything before we asked questions. Most of the candidates you interview are perfect hires. Some times its you who is wrong.