Ugh. I have a pretty decent job, and about 20 years of experience, so I have no need to job hunt. But if/when I do, I fully intend to adopt the policy that I will get up and walk out of interviews that do whiteboard coding puzzle tests. Having been trained to conduct such interviews at Google, I have no desire to participate in them. I can see their use for large companies like Google or Amazon that get thousands of resumes a day and can afford the false negatives if it means fewer false positives. But I can't see their utility at all for small companies hungry for good talent.