I went into labor on my own, sort of unexpectedly. I had an NST, and they monitored my contractions after I told them I had some the previous night. Sure enough, I was in labor so they sent me to the hospital. It wasn't rush rush, which was nice. And, my water broke at the hospital. Huge bonus! They got to clean up the mess!
But, I did have 2 bags of water, and the second one didn't break until I delivered Ava. The resident got a lap full of it. I told him, "I hope those weren't your favorite scrubs, or shoes!".