We generally say it when something bad and we know that it could just as easily happen to us, and anyone who is a parent should say that whenever they hear nightmare stories about kids being abused by their parents or caregivers.
I say that not just as a by-stander looking on. I say that as someone with three kids —all grown up now— but someone who has raised three kids and I know just as well as the next parent how much that can drive you to despair at times.
