I smile and say that's nice, can't be bothered saying anything else anymore because they just don't want to know as they are all talked out. Do t take it personally is easy to say I know, and I know also how much it hurts that they just don't get it. But, it will be their road to hoe someday no doubt in the future and they will look back on their comments to you and the penny will drop. Cold comfort, but there you are, it is what it is.