if this happens in local KGs .... I'm sure that the parents will complain about the school, saying that the janitors and teachers are not caring and "sai sum" enough!
One of my colleagues' (who's a foreigner) kids is studying in an IS primary school and he discovered that his son was "bullied" by his classmates so he "complained" to the teachers and the teachers said, "let the kids solve by themselves"
Kids are spoilt nowadays .... it's good to let them learn to handle things themselves :), no matter studying in local / IS schools ...