Why is going off on each other a one-way street? He has a responsibility to you to let you know when he will be bringing the kids home. And it is not your responsibility to shoo bugs off the children while they are in his care. Does he know where the pharmacy is? He can go there and buy bug spray. And if it doesn't work, he can take them indoors. You will need to stand up for yourself, BBJ. No one else will.