Join us on 10.1.18 for the 11th Annual World Day of Bullying Prevention™ Let’s #BlueUp together! The first Monday of every October is World Day of Bullying Prevention™! Wear your BLUE shirt and blue jeans on October 1st to raise awareness to the issues of bullying. Bullying is unwanted, aggressive behavior among school aged children that involves a real or perceived power imbalance. The behavior is repeated, or has the potential to be repeated, over time. Both kids who are bullied and who bully others may have serious, lasting problems.