While I agree that maybe they shouldn't be left unsupervised, they are both older, not 12. And it's her problem if she doesn't want to take them with her. Since it's her time with them.
You shouldn't have to change your plans on short notice for anything less than an emergency - one of the kids being sick or hurt. Neither of which applies in this case, just XW waiting til the last minute.
Hope you have a very fun weekend and enjoy the time off.
Happy Thanksgiving too!
Michelle - Proud DR Rockette S: 28JUL07, D'd: 29OCT09 http://tinyurl.com/27j9qo2