My dog charged toward my two-year-old daughter, barking with his teeth bared… I thought he had turned on her—until I spotted one tiny detail behind her.

hearing the shouting. When I told him what had happened, the color left his face. He checked the gate latch again and again, but there was nothing extraordinary to find. No intruder. No mystery. Only a latch that had failed, a child too small to understand danger, a mother who had glanced away for seconds, and a dog who had reacted before anyone else continue reading …