Interviewers are people, and people can be weird.
Say you'd like to have the opportunity to learn from a person who has achieved so much. Normally, this will either get the interview back on track or result in the interviewer setting up another interview for you. Another approach is to ask the person questions that feed his or her need to brag. That may result in you being described as a wonderful listener. The interviewer spends most of the interview talking on the phone.