Well my wife and I heard about a FREE non-profit
www.radkids.org to teach kids about how to avoid strangers and the tricks they try to use on children. Since we are on the PTO at our children's elementary school we setup classes for our school. Tonight was the first of 4 week classes and my wife said it was GREAT! I stayed home with our other 3 children while the other 2 attended the class.
I'd ask anyone interested in this class to check out their website. It's a very worth while program for kids to take and it's FREE! Well the PTO will donate some money even though it's not required, but we are just not sure how much yet.