Time-wasting. Interviewed for a position that was already filled. Interviewer did not bother to inform that the position was filled.
Interviewer was weak in interviewing. One would be better off shoveling and sweating in the hot sun to dig themselves a grave they would use in 50 years than to waste time in an interview there.
The interviewer was in HR. Seemed that she got there through some means other than merit. Woeful excuses for her inability to do her job were cited more than once.