Who was it said "I don't believe in ghosts, but I'm scared of them"?

Which is pretty rational, because everybody who isn't religulous knows that it's possible that they are wrong.

When a new landlord moved into the local pub, 17th century and reputedly haunted by several ghosts, he shut his dog in each room in turn overnight as a test. Perhaps it's a rare breed of Sceptic Collie, because he was perfectly happy in all the rooms. I suggested that, since horses are supposed to be even more sensitive than dogs, he should take a pony upstairs, but he baulked at that.

My own take is that the perception of ghosts is a completely real experience, even though the human spirit is a (very complex) process running in the harware (well' soft, wet and squishy ware) of the brain. We know that it feeds us* false information from time to time- that's what optical illusions are- so what our senses tell us* is an interpretation of external reality. There are many things that could trigger the interpreter to put a false construction on it- religious ecstasy has been induced by magnetic fields- and low frequency sound waves is a prime contender, though by no means the only one.

This explains why ghosts are culturally specific- a Japanese ghost behaves quite differently from a Congolese one, and an 18th century English ghost differently from a 15th or 21st century one. they behave as we expect them to.

* I've phrased this wrongly, of course- making it look like a show in the Cartesian Theatre. "We" ARE the process.