Were there bruises.
I have a policy:
They are not my kids. Unless there are signs of obvious abuse and neglect (obviously SERIOUSLY malnurished and/or suspicious - as opposed to normal kid type - bruises), it’s none of my &#$*#&@ business!
My mom was the kindest, most gentle person in the world.
Once she was babysitting my sister’s kids and they got unruly (as usual) One of the girls was especially boisterous and obstinate. My mom reached out to restrain her from crashing into a glass display case and dislocated the kids shoulder. She took her to the emergency room where the doctors questioned her for an hour before calling the cops, who questioned her for another hour.
My mom was in tears when my dad showed up and read them the riot act (which he could do VERY well!). After all that we still got a call from CPS and had to endure their sneers and lectures.
We live in a post common-sense world.