She is discussing the theory of constricting venous return and the evolution of erector rings, and then in the footnote, she unexpectedly digresses:
In San Francisco, cock-ring emergencies are so common that they have their own shorthand (“C-Ring”) on the Fire Department teletype. The department’s Heavy Rescue Squad has modified a small circular saw especially for this purpose and occasionally stages practice drills. The latter prove challenging owing to the absence of manipulable genitalia on Resusci-Andy dolls and the refusal of male staff to volunteer as mock victims.
Anyhow, my dear Happy Medic, what say you? Can you confirm these important details?
By the way, Roach was on The Daily Show recently promoting Packing for Mars: The Curious Science of Life in the Void. It was likely one of the funniest interviews I’ve seen.