The Pediatrician and the Elevator

We had this delightful visit recently to the pediatrician, I think on a Sunday morning, when I was taking the baby in for an ear infection.  The four story building is mostly closed and deserted on a Sunday, with only a handful of offices opened.  As I had the stroller, we took the elevator to the third floor.  For some reason, as the elevator door opened, Vivian put her hand on the door and as it slid open and her hand slid with it into the area where the door retracts.  She immediately started screaming and the door stopped, with Vivian's hand still in it. 
In a moment of parental panic I pushed the stroller out of the way and slammed on the alarm button of the elevator repeatedly which just actually makes a bell ring.  The bell made the baby scream, but nothing else came of it.  Vivian was panicking and screaming and trying to wriggle her hand loose, which scared me in case it was broken and she was moving it.  I finally grabbed her hand and pressed the door open button at the same time and pulled it free.  We ran into the pediatrician's with Vivian screaming and sobbing and Sam pushing the stroller.
After a kind of wild appointment, Vivian's hand was cleaned up and was a little scratched and bruised but intact and shockingly unscathed and Lanie had an ear infection.

Now when we visit the pediatrician, the children stand in the middle of the elevator, hands in their pockets, and as Sam says, "feet not near the doors."