I snorted. Magical Thinking? What on earth has Magical Thinking got to do with this case?
So I asked a doctor
"It is a recognised term to describe the linking of thoughts or behaviours where no rational link seems to exist."
So I looked it up:
"In clinical psychology, magical thinking can cause a patient to experience fear of performing certain acts or having certain thoughts because of an assumed correlation between doing so and threatening calamities. Magical thinking may lead people to believe that their thoughts by themselves can bring about effects in the world or that thinking something corresponds with doing it. It is a type of causal reasoning or causal fallacy that looks for meaningful relationships of grouped phenomena between acts and events." (Wikipedia)
"Magical thinking comprises the belief that ‘one’s thoughts, words, or actions can achieve specific physical effects in a manner not governed by the principles of ordinary transmission of energy or information’ " (http://epubs.surrey.ac.uk/217913/3/Simonds%20MAGICAL%20THINKING.pdf)
(I did find this rather wonderful paper too, which made my morning.)
Of course. Silly me. Magical thinking is the obvious diagnosis.