"As a pediatrician and as a mom, my rule is that lying is never OK. This is a boundary -- and an important one at that -- because it keeps kids safe."

I have to admit when it comes to my kids, social media has been ensconced in a general aura of fear. It's the unknown that promises to expose my kids to too much information, too much access and too many opportunities to interact with people I don't want them to interact with.

You need to have The Talk with your kid. And not just once but many times, slowly, over many years.

Kids can be mean. Perhaps it's part of their exploration of boundaries and their power in social circles. As parents, we can teach our own kids the importance of kindness, respect and treating others as we want them to be treated. And, we can guide them to stand up to bullies.