I have a friend in Sydney, who I met and worked with, over 20 years ago. We email frequently, not only me and him, but me and his wife as well, as she worked for the same company back then too. I always visit them when I go to Sydney.
Anyway, the went to a reunion a couple of weeks ago, in Sydney, of former employees of the company, and he wrote and told me about it.
I wrote back, asking if he had told them that we still keep in touch, then added, "not that they need to know, no one's business but ours".......