I know a guy who came within a hair of being recruited by the FBI. He went through all the preliminary exams you have to take before they decide to train you at Quantico (it is Quantico, right?), but ultimately, they dismissed him on the grounds that he was “too honest”.
I can kind of see that, though. Of course all agents should have integrity, but he is very straightforward, and they must have been concerned that he wouldn’t be able to keep a poker face when necessary.
I had a job once where my supervisor was always commenting on what a great job I was doing, gave me great evaluations, etc., until I mentioned to him that I had once had a job similar to his in a previous job (not in a confrontational way, purely conversational and not in relation to a specific work matter). After that my evaluations started going down and he started riding me over minor issues until I transferred to a different department (a lateral move, not a promotion). For some reason he didn’t see me as competition until then, I guess because I was always accomodating and didn’t seem ambitious.