The things Dad forgot to tell you about sex? Hell, my dad didn't say anything to me about sex; Mom did a little, but mostly I'm a product of the pro-sex late seventies school system. I turned out OK, right? Just A Guy Thing fills in the blanks that Dad left out, which, um, I don't think I learned about in sex-ed, either. Sadly, anyone remotely sexually active probably filled in those blanks themselves, so my guess is that JAGT is pandering to their 15-year-old boy audience. "Your penis can explode"? Every teenager wishes they could know such things!