I have had to terminate families because of the unsafe behavior of their children. For the safety of the other children I care for the family must find alternate care. I have even suggested that because I do not have the qualifications for dealing with this sort of behavior that they find a specialist (pediatric specialist) that can help the child and parents redirect this behavior.
Just a note--I have heard from a teacher (who is a dear friend of mine) that the politically correct phrase for children with poor judgement and behavior is "Opposition defiance disorder". I am so tired of putting a politically correct name to every deviation from what we consider normal. As far as I am concerned the behavior is either a parenting issue(or lack of) or the child has a physiological behavior challenge. Either way the family should seek help before the child enters school and he/she slips through the cracks.