OK so just to set the background I'm not really fond of SIL but she came to my house recently with another nephew. She proceeded to give out to my child as he 'wasn't sharing' a particular toy with other nephew. In fact he was but that's besides the point. She said 'Ds1 share with nephew "Fucked me right off and now I feel annoyed for not saying piss off and mind your own business and don't feel the need to discipline my child.
Is it OK to discipline another child in said child's parents presence?
What do I say if it happens again