['I was so shocked when my great grandpa visited the other day. He never leaves his house.', 'That sounds like such a surprise. Does he have a disability that keeps him at home?', 'He is just aging and it is hard for him to move around. We had a great visit!']
That's great to hear! My papa is getting older too. It's nice to be able to spend time with him.
My great grandpa visited me out of the blue. I was so shocked. He never leaves his house.