It sounds like you have eliminated all possible avenues as being pushy other than parading your three boys through the room in front of them naked. I think it is time to be pushy. While they may not like it, it will be forgotten soon. Remember, there is the possibility you will save a child's life by being pushy. If nothing else, you are standing up for his rights when no one else will. You may want to enlist some help from your intact cousins.