From the medical world (I am a medical student in Houston)…
At Baylor College of Medicine, one of our professors works on contraception in animals (Dr. Bonnie Dunbar). She has pigs trained to ejaculate on command. Not only do they have the corkscrew penis and all, but they have appx 15-30 minute orgasms and the ejaculate is I think around 1 liter (if I remember correctly). I think CA refers to the length of orgasm and the corkscrew penis in one of his books.
The photic sneeze reflex is also called ACHOO, for autosomal dominant compelling helio-ophthalmic outburst syndrome. I guess a bunch of anesthesiologists had nothing better to do. CA refers to it in More of the Straight Dope I think.