In a survey of over 3,000 hiring managers and HR professionals, here are a few of the biggest interview blunders they reported:

• Candidate answered cell phone and asked the interviewer to leave her own office because it was a "private" conversation.
• Candidate told the interviewer he wouldn't be able to stay with the job long because he thought he might get an inheritance if his uncle died - and his uncle "wasn't looking too good."
• Candidate told the interviewer he was fired for beating up his last boss.

Source: http://www.careerbuilder.com/jobposter/small-business/article.aspx?articleid=ATL_0174INTERVIEWBLUNDERS