Lunatics with baby rabies maybe? ![Huh? ???](http://www.armedpolitesociety.com/Smileys/default/huh.gif)
I was wondering about that, too. That is the typical scenario when someone abducts a newborn from the hospital: a young(ish) female, often single, who has been faking a pregnancy or has been trying to get pregnant for years without success. They often have mental health issues up the wazoo, and a lot of them pose as hospital staff.