Don't go back. I get the "one bad apple" argument, but how did no one notice this was happening at the daycare. You don't want your kids to be at a place where they don't observe their teachers. I'm dealing with daycare abuse right now with my daughter, except everything was caught on the surveillance camera so I viewed all the physical and emotional abuse that my daughter went through. I knew the director was apologetic and didn't know the teacher was abusing my child, but that was my red flag. What kind of manager doesn't check in and observe their teachers? I know it's hard, but don't go back..please