The History of Sex: Graz and Vienna -- 'Habemus Papam!' -- (Chapter VIII, Part 26)

The reason Fliess was able to lead Freud around by the nose, so to speak, was because his friend thought that he, too, was 'on the scent' of a world-changing discovery.

Building on Charcot's cockeyed theories about sex and hysteria, Freud tackled another ambiguous 'disease' that was all the rage at the time.

A doctor in the US had coined the term 'neurasthenia' to describe a general state of nervousness in modern society caused by factors ranging from rapid urbanization to, um, religious freedom.

But Freud declared to Fliess that the one and only cause of this neurosis (nicknamed 'Americanitis') was an abnormal sex life, specifically masturbation and coitus interruptus (predictably, Fliess thought that wanking also caused inflammation of the nose). 

Of course, onanism had long had a bad rap in Judeo-Christian culture—there was even a theory of 'masturbational insanity' at the time—but Freud managed to convince himself he was onto something new.

He began routinely interrogating his patients about their sexual habits and soon jumped to a truly shocking conclusion: all neurotics had been molested as children by their parents.

'Sending a a woman to a Freudian therapist
is not so far distant from sending a Jew to a Nazi.'
--Gloria Steinem

The myth created by Freud—and perpetuated to this day in books and museums—is that he deduced this from what his patients were telling him.

The reality, though, is that he prodded and bullied them into telling him what he wanted to hear, forcing them (in his own words) to focus on 'repressed sexual ideas in spite of all their protestations.'

A case in point involved a woman who supposedly had symptoms of hysteria: namely, a speech impediment, with cracks and eczema around her mouth.

BUSINESS RULE #1: NEVER PEEVE THE BILL-PAYER

Freud outlined his tortuous thinking, noting that both the patient and her father spoke as if their mouths were full.

'Habemus papam!' he exclaimed.

In what must be an early example of a Freudian slip, the doctor said he 'thrust the explanation at her.'

Much to the patient's surprise, and without any evidence whatsoever, Freud informed her that her dad had forced her to give him fellatio as a girl—and that was why she now had cracked lips and talked funny. 

Unfortunately, he noted, the woman then 'committed the folly of questioning the old man himself,' and her father swore he was innocent.

Most likely he swore a good deal at Freud, too.

The doctor quickly realized that although sex talk with women was good for business (and more pleasurable than he ever admitted), accusing the men who paid their bills of molesting them wasn't.

More importantly, Freud noted that his own siblings were also high-strung, raising inevitable questions about his own papam.