Sometimes in life, people doesn't know when to stop. They try, whatever the answer in front of them is. They keep trying, and they don't listen to the response. But if you explain it, plainly, properly, then you have a chance that they might understand, that they may understand, that they understand. We all have a mother, a sister somewhere, so that is the probable key. Try to say the right words, it can change a lot of situations.