There are certain questions that one might not want to ask the delivery nurse if you or the parents-to-be aren't expecting blunt honesty.
Example numero uno:
Me: wow, I just can't believe all these contraptions you guys have for delivering babies.
Said nurse: Yeah, they really are great.
Me: So what did people do back in the pioneer days when they didn't have all this stuff?
Said nurse: A lot of women died (with a sympathetic shake of her head). Giving birth was very dangerous, that's why if you go to a cemetery and look at the head stones, you'll see a lot of men had 3 or 4 wives.
Me: Awkward silence... (thinking) not quite the answer I was looking for but for some reason I feel like I should've known that she was going to say that, doh!