I did kind of do a double take and probably had a bit of a shocked look on my face as I said something like "absolutely not, definitely not, no way, no." The nurse laughed a bit and left. I also guess it's probably routine for them, but I don't really have any choice in the practice. We live out in the boonies, and it's the only practice in town, and my labors go too fast for me to drive anywhere else but our local hospital. I'm moderate risk - not enough for a high risk practice, but enough that I feel better with an OB instead of a midwife. Plus, I like and trust my actual doctor. He's pretty conservative, but he doesn't talk down to me and I respect him as a doctor, so... yeah.
I still think it's a bit of a weird question to ask right away, though! You'd think that'd be asked at the end with the rest of the birth plans.