When we visited up north on our first anniversary, Dh and I decided to take his mother and our 2 DGDs out to dinner. Just wanting to spend time with the 3 of them. Everyone else was at work. We had the best time. It was also a way to acquaint the girls and his mother. We ended up taking his mother to his sister's house to babysit her other grands. We informed the girls that she was their step great-grandmother. They looked at us and each other and said "No way! She's still walking! No one is that old and looking that good and still walking!" Their other great grandmother had been in a wheel chair for years and passed away at 70. DH's mother is going to be 80.