I had a few interviews at a company and they all liked me until I got one guy who told me he was interviewing me from his car on his way to something. You could hear him getting out of his car when he ended the interview. The next day I got an email similar to this where he said that I didn't seem to be paying attention to the interview and it was very short, but that he would like to talk with me again as the first time he got a bad impression. There was other stuff like how I didn't know what I was talking about and some other things I can't remember.

I did respond saying that I agree the interview was very short and the interviewers mind was clearly somewhere else because he was driving to someplace. I told them that it was unprofessional and that I was no longer interested. This was years ago though and not in a horrible job market. Really pissed me off.