Not sure I have this right. All will be going to see your wife?
That will be wife's two sisters and brother in law AND your wife's Mom? And they want to take the girls? And you're concerned about Grandma's behavior?
If I have this right, you DO need to talk to your SIL about keeping grandma on a short leash. You know why? Because your daughters ASKED you to. You are their protector, their father, you do everything in your power to make their road easier, no matter how much it bothers you.
Just do it man.
By the way, if I've understood the meeting correctly, this seems like a SAFE way for your girls to see their Mom. It sure sounds better than the other options that were presented.
Blessings.
Bill
"Don't tell me the sky is the limit when there are footprints on the moon."
