Again I have to disagree...

If someone accuses you of beating your children it's not a matter of just letting them get under your skin. this could cause a lot of legal hassles for the parents, CPS getting involved in a situation that they aren't even needed (which then takes them away from REAL cases of abuse)...

Something like this can very easily and very quickly go from "He said she said" to an investigation with little to NO proof. Happens all the time.