Good Hope School principal Gary Harfitt spent his weekend explaining that no, Cantonese is not banned on campus. A video went round claiming exactly that. It blew up. Parents got angry, the kind of angry that makes a school issue a statement on a Saturday. The Education Bureau told the school to review its rules and clarify things properly, which is bureaucrat for "you have a mess, go clean it."

Here's the part that's actually interesting. It's never really about the rule. It's about the clip. Someone posts twelve seconds out of a much longer meeting, no context, and by the time the school explains itself the story has already finished travelling. Doesn't matter if the school has some policy about English immersion during certain hours, or a teacher was strict about it in one class. Once "Cantonese banned" is out there, it's out there. The bureau stepping in isn't really about language policy. It's about a school system that has learned, the hard way, that a bad ten-second video now moves faster than any actual explanation ever will.