To take this even further: how about requesting the opportunity to ask the interviewers questions before instead of after the technical portion? Then, if there

To take this even further: how about requesting the opportunity to ask the interviewers questions before instead of after the technical portion? Then, if there are any clear red flags about the company or work environment one can avoid a gruelling yet ultimately pointless whiteboard session. It should make no difference to them so if they refused this it would be a giant red flag in and of itself.