How can I rescue an interview that I know is going poorly?

Interviews gone awry can cause a lot of trauma for the candidate when they can tell that the interviewer is not pleased with how the interview is going. The best thing to do is to take a couple of steps back.

The interviewer clearly knows what's not working in the interview, so why not just be a friend and ask him or her

"What can we do to make this interview a really great experience for both of us? What can I do? What would your recommendations be in terms of how I can make the best contribution to this company?"

Let them take the lead for a few minutes while you kind of regroup, gather your thoughts, and then get a new sense of energy to jump back into that interview.