Gulf of Alaska: where two oceans meet, but never mix! is a result of the melting glaciers being composed of fresh water vs the higher percentage of salt causing the two ocean bodies of water to have different densities!
Applies mainly to South Africans - and it's so, so true! I had so many "tannies / aunties" and "ooms / uncles" growing up . A form of politeness for adults that the rest of the world has pretty much lost / left behind.