first i documented everthing and told my boss. she made it VERY clear that we would not report.
I hesitated and asked around - everyone said report. I saw the baby next time (not the boy) and the mom said to my boss "go show _____ how you fell down the stairs and hurt your lip!" The baby was pre verbal. my boss believed that the boy always lied and told me he made it up. as it was the first thing he told me after the dad left, and full of anger, i am quite sure he did not (i never believed he was a lier anyway - just always trying to protect himself).

I reported 3 days after the incident and CPS YELLED at me for waiting that long!! Totally balled me out. I called at 10 that night and because of the age of the child, they went there immediately I quit my job the next day (it was a 2nd job). The lady then a week later called my boss at my regular job to tell her what a rotten person she hired in me and that I ruined the lives of the family.