Dimitri Speck (in Financial Sense) looks at the behaviour of gold when the stockmarket falls, and tends to the conclusion to which we've referred before: the gold price is rigged in order to allay fears when equities weaken. In short, it's a crooked card game.
That in itself is grounds for worry (nothing to hide, nothing to fear); and the desired result must be achieved by dumping bullion, which can't continue indefinitely. On this thesis, the crisis signal will be when gold stops dancing with the Dow.