In a recent interview I asked a behavioral question about conflict and the candidate was unable to answer the question. Instead he said something like, "umm .. [pause] .. ummm ... I don't really have conflicts. I can't think of any examples." The odd part: the candidate was an internal candidate who I know well - and I know the candidate had multiple experiences which could have been used to answer the question. Having seen him work, he is actually fairly good at managing conflict - not great, but good.
How do I interpret this answer from this candidate?