My ex has every other weekend visitation with our son, and the majority of the time, when I drop our son off, he is NOT there, and he is on call most weekends for his work-- I would much rather our son be at home with US, considering we are at HOME and pretty much take them with us everywhere and to most activities-- BUT, I also look at it this way-- the time his father has to spend with him is HIS time-- if he chooses or does not arrange to be at home and spend that time with his child for his visitation, then it is HIS loss-- our son is at THEIR house with his stepmother, so he is in a safe environment, so it's not like he's left alone or something-- but he is visiting-- and spending time there-- he doesn't see his father much, but he is also learning a lesson from that as well, and I don't have to say a word -- We have first right of refusal in our paperwork, but as long as he is there with his stepmother, then I don't make a fuss- kids learn many of their priorities and what adults find important this way-- so, unless, the kids are being left alone, I don't think there is a lot that can be done-- ???