Condoms and consequences
My internet ninja brother points to a great post from Hog on Ice about sexually-transmitted disease.
It's a pretty controversial post, to say the least. Here's one of the more inflammatory claims: "[C]ondoms don't work. They stop some diseases pretty well, but there are other diseases that go right around them."
I agree that a condom is not a "magical" shield against the consequences of sex. However, some folks, many of them well-meaning Christians, believe that a condom is nearly useless. One of my brothers told me once that encouraging Africans to use condoms would only further the spread of AIDS because condoms don't prevent the transmission of HIV. That's not true. Condoms are something like 95 or 99% effective at preventing HIV transmission.
Let's tell the truth and let the chips fall where they may. Condoms protect you from some, but not all, of the consequences of sex. And condoms are certainly not 100% effective at preventing anything. Abstinence is. A condom is better than nothing. But monogamy is better than a condom.