Yes, Ocean 11, I see your point. Just like us in Hong Kong, we like to distinguish ourselves from the mainlanders and also sometimes identify with them "when it suits our needs".
I just thought it might be a useful hint to those who have friends or acquaintances who are Canadians that it who be wise not to refer to them as "from America".
On the same note, I have some Scottish and Welsh friend and they get pretty annoyed when people here introduce them as being from England.