I've had two hospital births, and been in several more times with preterm labor. I didn't have any unwanted interventions during my births, but I had several when in there for preterm labor. With my first, a nurse attempted to inject terbutaline while I was sleeping, even though terbutaline was contraindicted for me because of my heart condition. That was scary, and luckily I woke up in time. And with the twins, DS had a really scary decel on the monitor, and a nurse rushed in and inserted an IV with fluids and shoved me on my side without explaining what was happening. To be fair, however, she thought DS was deprived of oxygen and was doing what she thought was truly necessary.
DS was given a bottle of formula only a half hour after his birth, without my or DH's permission, because some jackass thought he had low blood sugar, even though his heel stick came back normal. He was under observation in special care for three hours after his birth because he was having trouble breathing on his own. I will admit that the breathing help saved his life, but even the peds said afterwards that he did NOT need the stupid bottle, and we dealt with three weeks of nipple confusion and now he is allergic to dairy because of being sensitized so early. DH was there, and knew to refuse, but he was busy with DD2 at the time, who was also under observation because of her low birth weight, but only for about a half hour.
Oh, and once with DD1 a nurse came and removed DD from my breast and wheeled her out of the room while I was sleeping, so that I woke up in a panic not knowing what happened to her. The nurse was trying to be helpful, and thought I'd appreciate having someone take DD so I could rest. I was furious.