i have physical custody of my 3 children. ex-husband has pretty generous visitation rights. not too long ago my children were scheduled to be with him for the weekend, but he was going to be out of town until sunday afternoon. he felt the kids should go to his house anyway (he is remarried), even though he was not there. was i legally obligated to have the kids go there for visitation, even if he was not there? (i live in IL if that matters)