As one does with a first child, I found out that my baby could roll by hearing the sound of her body hit the ground at 4 a.m. and obviously, for any new parent, that is the most horrifying thing that could happen, right? You're exhausted and you take your tiny little baby out and you put them on the bed to change diapers before nursing and you turn around and you discover... my baby can roll! And you think you're going to die.