ESIs sometimes have reservations about someone but not really know why; it seems almost instinctual with little basis in fact. It often takes someone else to actively probe the ESIs information or rationale, or lack thereof - to force the ESI to address the real source of problem rather than the wrong one they're maintaining. Sometimes they cannot see beyond their own noses and will allow issues to fester, and as time goes on, will become more convinced that they're right. Their hyper-cautiousness seems manifest itself as rash (jump-to-conclusions) decision making. They further defeat themselves with their isolationist behaviour toward those suspicious others and their seeming inability to clear the air especially when it might involve conflict of even a minor nature.

a.k.a. I/O