Every parenting book you’ve ever read tells you to never, never, never leave your baby unattended while you hunt frantically around your house for a diaper. And on this topic, every parenting book you have ever read is exactly correct. When my daughter was 4 months old, I laid her down on the sofa and went looking for my diaper bag. She’d never rolled over before; what could go wrong? In less than a heartbeat, she’d rolled right off that sofa and smashed her head right onto our hardwood floor. In a cold panic, I rushed her to the pediatrician’s office.
