Avoid Withdrawal as Contraception

“No, and presumably before condoms, one can only speculate because as we say, when it comes to behavior, there's rarely a fossil record, but sometimes there is, it would be the withdrawal method of contraception, which a good friend of mine who studies, whose laboratory works on reproductive biology says, the reason that's a poor choice of contraception is because it was designed not to work. Yes. So note to those trying to avoid unwanted pregnancy.”