We had our first boy-girl dance in grade five. It was the girls' idea. They convinced our teacher who agreed so long as when we danced we held our arms straight out so there would be minimal bodily contact.
The organizers wanted some slow songs during which we'd couple up and dance. That meant throwing on Wham's "Careless Whisper". Starting in grade five, "Careless Whisper" became the primary school dance staple.
To this day, whenever I hear that opening saxophone riff or George Michael bellowing out the lyrics to "Careless Whisper", I'm instantly brought back to those primary school dances.