I would keep him seperated as long as he is there . A seperate place to play alone with toys. The last thing you need is for the little ones to tell their parents what he said (and I bet they will) and to still let them play together .

I once had a dcb who was always saying he was going to burn down my house, kill my dogs etc... It started to affect my dd so I spoke to the parents . They felt it was just kids being kids . I didn't and gave them two weeks notice . This child was kept seperate from the others for those last 2 weeks , he was not allowed to play with any kids except his sibling .

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