I've occasionally dreamt that I was black.

That sounds possibly even more startling. How did you know, OOI? Did you look in mirrors during the dream, or look down at your hands, or did you just know as one tends to in dreams?

Mainly I just knew. But I also occasionally saw myself from the outside - my dreams often switch repeatedly from first-person to third-person perspective, as if I move from watching a film of the events, or playing a game, or reading a book - to actually being a part of them. One time I was a black woman, rather older than I am now, in a long-term relationship with an Asian woman; another time I was a small black boy, about 7 or 8. But I was always still me inside.