Naomi - “... Birdie if your ESP was up to scratch, you'd have known that...”
Hmmm. My ESP obviously doesn't work! Probably because it doesn't exist... ;-)
“... Sometimes people, for no apparent reason, just 'know' someone will call them, or that something is wrong, or as Wildwood says, they will know that someone is behind them. It that kind of 'instinct' I'm talking about....”
This is confirmation bias. How many times have you thought about someone and they haven't called? How many times have you thought that someone was behind you but weren't? Hundreds? Thousands perhaps?
Do you remember the 'misses'? No, of course not; no one does. Do you remember the 'hits'? Oh yes! The human brain is spectacularly good at connecting random events together to create a sequence. It is an evolutionary necessity (ie. a survival trait) and something that we are hard-wired to do.
http://en.wikipedia.org/wiki/Confirmation_bias