And if the problem [with contraception] is promiscuity, then why does the immense popularity of Viagra go unchecked? Doesn't it make more sense to leave the bullets out of the gun than to try to avoid being shot? Especially when the gun is an old musket, and you have to clean it out and tamp down gunpowder, melt down scraps of lead and pour it into a mold, wait for it to cool - only to have it take forever to finally go off?