Distrust emerges from familiarity inversions and symbolically discrediting signs. [causal]
Distrust can consequently develop out of unquestioning familiarity on the one hand, through the sudden appearance of inconsistencies – one hears an inexplicable noise in the middle of the night – and, on the other, through a reversal of trust, if symptoms are perceived which are symbolically discrediting. Past history will remain important to the way in which distrust is articulated, the emotional tone of its expression and its durability.
Niklas Luhmann, Trust and Power, loc. 268