St. Louis (KSDK) - What happens in Vegas stays in Vegas, unless you're Prince Harry and TMZ publishes pictures of you cavorting naked during a game of strip billiards.
PHOTOS: Prince Harry gets naked in Vegas
It's the latest royal scandal, and social media expert Rebecca Dohrmann, Professor of Communication at Maryville University, joined First @ 4 to talk about how you can never be too careful when there are cell phones around.
Prince Harry stays offline, he doesn't tweet, he doesn't have a public Facebook page, but he's been hanging out in Las Vegas with someone who does, Olympic gold medalist Ryan Lotche.
Click the video player above to hear about how to be careful with social media.
KSDK