The interviewer is often times the only thing standing between you and the perfect job. A bad attitude has no place in the interview. Being disrespectful to the interviewer may just cost you the job. Not sure what interviewers consider to be disrespectful? Here are just a few things to watch for.
It's funny, sometimes candidates say things without thinking that can be very offensive to the interviewer - it also depends on the interviewer. I would like to think that a candidate would not intentionally blow an interview - but they really need to be conscious of what they asy.
Sometimess an interviewer can laugh it off as "lack of social skills" but may still hold it against the interviewer.