Back to school for all but back to being bullied for some and a child expert and author has a reminder that bullying doesn't just happen on the playground or the school bus. It can also happen on your child's smartphone or tablet. Peggy Caruso says the best way you can help your child is to open your eyes to the digital world. She says to advise your child to resist the temptation to respond to the bully, to save any evidence and use online privacy tools and settings to block the bully.