I hate the second question. I even had one interview where either the client changed their mind or the agent hadn't been truthful (or a combination of the both). At the end of the interview I was basically told that I would have to take a rate which was significantly lower than the one I agreed to be interviewed on. My feeling was that it was totally unprofessional and improper as the rate I get is what the agency pays me and what the client pays the agency is nothing to do with me. Also, in this country at least, the rate is always negotiated before interview. Adjustments are sometimes negotiated afterwards if either party thinks that what is on the table differs from what was verbally offered (skills not as good as advertised or role different, for example).