Godard observed that when animals are bled, or felled, as well as strangled, there is often abundant emission, rich in spermatozoa, but without erection, though accompanied by the same movements of the tail as during copulation. Robin (art. "Fécondation," Dictionnaire Encyclopédique des Sciences Médicales), who quotes this observation, has the following remarks on this subject: "Ejaculation occurring at the moment when the circulation, maintained artificially, stops is a fact of significance. It shows how congestive conditions—or inversely anemic conditions—constitute organic states sufficient to set in movement the activity of the nerve-centers, as is the case for muscular contractility.... Everything leads us to believe that at the moment when the motor nervous action takes place the corresponding sensitive centers also come into play." It must be added that Minovici, in his elaborate study of death by hanging ("Etude sur la Pendaison," Archives d'Anthropologie Criminelle, 1905, especially p. 791 et seq.), concludes that the turgescence of penis and flow of spermatic fluid (sometimes only prostatic secretion) usually observed in these cases is purely passive and generally, though not always, of post-mortem occurrence. There is, therefore, no sexual pleasure in death by hanging, and persons who have been rescued at the last moment have experienced no voluptuous sensations. This was so even in the case, referred to by Minovici, of a man who hanged himself solely with the object of producing sexual pleasure.
Eulenburg, Sexuale Neuropathie, p. 114.
Bernaldo de Quirós and Llanos Aguilaniedo (La Mala Vida en Madrid, p. 294) knew the case of a man who found pleasure in lying back on an inclined couch while a prostitute behind him pulled at a slipknot until he was nearly suffocated; it was the only way in which he could attain sexual gratification.