Answers to interview questions you should never accept: “I left because of a personality conflict with my boss”

Consider the following interview exchange, which any recruiter with more than a few weeks experience will be familiar with:

Recruiter:                 "Why did you leave your role at XYZ company?"

Candidate:             (Stony-faced) "I had a personality conflict with my boss"

Recruiter:              (Awkward Pause) "Okay"

What happened next? Did you probe …