Jung & Freud on parapsychology

“A different sign of conflict came when Jung asked Freud what he made of parapsychology. Sigmund was a complete sceptic: occult phenomena were to him a "black tide of mud". But as they were sitting talking, Jung's diaphragm began to feel hot. Suddenly, a bookcase in the room cracked loudly and they both jumped up. "There, that is an example of a so-called catalytic exteriorisation phenomenon," Jung retorted – referring to his theory that the uncanny could be projections of internal strife. "Bosh!" Freud retorted, before Jung predicted that there would be another crack, which there was.”

– Mark Vernon in The Guardian Science