ok, here just one real life example:
Landing at airport daylight in Africa, daylight, VMC but with thunderstorms approaching, 2 other aircraft on "freq" but no idea where they are as they don't seem to know either, useless ATC
...
On final at around 1000', visual with runway, no terrain issues: GPWS warning: terrain terrain pull up...
SOP: GPWS warnings on final must result in an immediate go-around.
So... what do you do? discuss ahead!