Congrats Bay. Like I said when you mentioned this might happen... the grandkids are gonna be thrilled! Even if it does take a few years for the youngest to be able to understand what great grandparents they have.
Funny thing happened today. I was scratching his head and talking to him. I told him to help me out, that I would scratch his favorite place, but he would have to show me where it was. He walked forward and stopped, plainly showing me his withers. So I scratched both sides, much to his satisfaction.