" Give me an example of a time that you felt you went above and beyond the call of duty at work” one time, because there you are just testing for basic prep. Ask it again. And again. And again, until the candidate can’t come up with any more answers. And don’t look away, break the tension with a chuckle, or give the candidate a chance to divert attention and halt the questioning process. "

― Tyler Cowen , Talent: How to Identify Energizers, Creatives, and Winners Around the World