The comment published as a post below came from my recent blog post about gestational diabetes and is so detailed (and says what I would like to say better than I can say it myself) that I decided it deserves full guest post status. It's in response to an anonymous commenter who'd had this to say:
I understand that you have a birth plan and that everything in your mind should go that way. From your first birth I think you should understand that it doesn't always go that way. However, at the end of the day you have to respect that the hospital is just doing their job to make sure your baby and you stay healthy.