Don't be too surprised if he or she doesn't. I originally saw this on Pharyngula. The Washington Post has a paper and commentary by Daniel Dennett from Tufts University about pastors who are atheists. He wanted to concentrate on pastors who were currently working as pastors. The paper is a study of the responses of five people so no broader conclusions can be made (except that it was fairly easy for him to find five volunteers.)
I found the paper interesting because many of the responses aligned with how I justified my work as a Sabbath School teacher (it is just like Sunday School only on Saturday.) Also their survival strategies mirrored mine. People already assume that I am conservative. So anything I say is interpreted in a much more conservative fashion. In addition to that, I am able to speak in a metaphorical fashion, so that if you take me literally it sounds like more traditional Christian belief. While I have not been to seminary, I have an understanding of Biblical Scholarship that has happened in the last couple of hundred years. Once you understand how the Bible came to be, it is hard to take it literally or authoritatively.
Anyway, I highly recommend reading the paper.