I would call her and say you know Olivia is really sick today with diarrhea and whatever else that ails her...Go on and on about how miserable she is and how she must have picked up a bug
Make her feel really good for causing her DGD so much misery...and then say..
oh..wait.. so what did she eat last night???
I would put it back on her!
Some may find this approach mean..but hey..she disrespected your wishes.
Olivia is not her child and she shouldnt go against your wishes. OMG and if she cut her hair..
lol... do you want me to call her???lololol