I've only faced this a time or two, and I ended the session. I did that with respect and candor, being frank about it potentially being a poor fit, wishing the

I've only faced this a time or two, and I ended the session. I did that with respect and candor, being frank about it potentially being a poor fit, wishing them luck and all those basic human things. No regrets. In my view, these things are self-correcting. If the interview is so poor that I feel it doesn't make sense, it's extremely likely more will be a rough scenario.