Rudism,
There are some situations in which ψ may be operating in the real world:
Someone looked at the statistics of seat occupancy on planes and aircraft that went on to crash. It would seem that these doomed journeys have fewer passengers.
Very few animals were killed in the Asian tsunami because they all headed inland in time to save themselves - i.e. before the tsunami appeared.
Animals often behave in odd ways before earthquakes and other cataclysmic events. The Chinese are even looking at this as a means of earthquake prediction, and have performed one successful city evacuation:
Can Animals Sense Earthquakes?
Dogs and cats seem to know when their owners are coming home.....
David