Could all the new extreme sports we see budding up around the world have been discovered by the sitting man?? Think not that philosophy is noting more than self-imposed rhetoric by the scientifically challenged, my friend.
If you're thinking about using the "pull out" method as a means of contraception, might want to consider the "don't put" in method instead. That, is 100% guaranteed. I know way too many babies being born to couples who used the pill and the condom.