I may have missed it and am not inclined to reread the thread to see, but how much time are we talking about between the ordered time and your availability? Are we talking a few hours or overnight/a day? Is daughter in any actual danger by spending that extra time? How often does this occur? Honestly? If you take it to court (vs coming to an agreement w/Mom), I can see Mom requesting (and very possibly receiving, especially if the time is not significant) right of first refusal.