Does anyone besides me remember Dr. John Eichenlaub, author of a "marriage manual" in the 60s. who advocated an occasional "ice-spurred special" (HIS words) in which the woman would prepare a bag of ice cubes and jam it into her partners scrotum at the 'crucial moment'?

(I do remember that excessive heat can adversely affect fertility, but 'perhaps' bags of ice are a bit over-reacting.)