'I’d Forgotten How Fast Toddlers Can Really Move'

This reader series clearly struck a chord, as many parents keep writing in to share their stories. Here’s Leila:

My brother was two years old when my mother and I turned around to find that he had evaporated into thin air. My brother from an early age was nuts about trains, so she headed to the train station about four city blocks away. She found my brother there dancing up and down on the concrete platform waiting for the next express train to go through. It was just on the verge of rush hour.

I think you are fortunate if you’ve raised a child and you do not have an almost-horror story to tell about that moment when you looked the other way or you thought everything was under to control … only to discover that it wasn't.

Another time it wasn’t:

My husband is currently using an iPhone with a cracked screen because of an incident at Christmas, when we were at La Guardia getting ready to fly home for the holiday.