LeBron James is on a retweet spree this morning on Twitter. It was his boy, Bryce's, first day of school and the turtle backpack made its debut at some Miami private school of learning. Good for this kid. He's going to need Teenage Mutant Ninja Turtle skills if his daddy chokes in the NBA Finals when the league ends its lockout. "Daddy, the kids at school keep saying you can't hit a 3-pointer with Dirk in your face." 8 Best Turtle Backpack Reactions - JUMP!