How to Deal With Sexual Violence in High Schools

I'm really curious about when you go to high schools and give talks to kids other than the super obvious advice of like don't maliciously send around your ex girl friends naked photos of her. What advice do you actually give to boys on sexting? I think talking about those sort of deeper expectations that stereotypes about gender can potentially help address some of these social problems but I mean I can only do this like 25 students at a time right and it's only like a one hour thing so if someone comes in with a bunch of rape myths in their head I don't know that an hour is going to fix it well do you tell  them or bud?"