why don't clocks go counter clock wise in the southern hemisphere?

They used to but now we've gone digital. Even the Coriolis effect can't resist the power of technology.

On a totally unrelated topic, it's so much more disturbing to lose your job in the southern hemisphere. Going down the gurgler is unpleasant in any part of the world, but on the flip side of the planet, the gurgler has a left hand thread.