My stepdad was south African. Ran his own business here in the UK. One day a new client comes in, they get chatting, and he notices my dad’s South African accent. Says he, too, is originally from SA. Asks my dad where he used to live, and says “me too !”

Comes back in the next day with a photo (black & white – little South African humour there) of a group of kids, aged about 10. Says to my dad ” this was a birthday party I went to when I was 10″ He points at a boy and says “that’s me”. Then he points at another boy in the photo and says to my dad “that’s you.” He had a photo of a party my dad had attended something like 40 years ago on another continent, and neither of them knew each other !