My DD has started a new job alongside another newbie ,working with my friends daughter in a professional setting. Friends DD is being an absolute cow to both of them . She's told them to shut the fuck up, slagged off one of their haircuts , told them she could knock them out with one punch , told DD the cup of tea she made her was 'fucking shit' and on and on . DD went to a leaving do of the person she's taken over from and they said friends daughter was the reason for leaving . A lot of this behaviour happens while their manager is present and she says nothing .
My question is , my friend is bound to ask me ,at some point , how DD is getting on - what should I say ? I don't want to make things worse for DD and I don't want to upset my friend .