I stumbled upon these awesome tips from "Safely Ever After" that parents & children should know about staying safe & "strangers". A good read for sure for all parents!
P.S. In addition to the wonderful links below, another tip they shared is that teaching your children the anatomically correct names for their genitalia is important because there isn’t a child molester on earth who’s going to talk to your daughter about her vagina. Really. But if she suddenly starts calling it a "cupcake", you can ask her who taught her that.
Play It Safe Rules For Kids and Grown-ups!