MIL is generally lovely but she has a penchant for giving DC sweets & saying "Don't tell Mummy". She does it as a joke I think, and as far as I know I've always been in the room anyway when she's done it, however I'm really uncomfortable with it.
DC are still young, but I will teach them that no-one should be telling them to
keep things from Mummy & Daddy & I think it's confusing that MIL is saying this. DH thinks I'm overreacting a bit I think as I said something about child protection as a reason why but more generally I don't want anyone encouraging my children to lie to me.
So am I being very po faced, and how do I address it with MIL?