Rex Wrecks By: Dr. Nicholas Oeser Dr. Nicholas Oeser, with his book, Rex Wrecks, hopes early intervention will decrease physically aggressive behaviors commonly seen in young children. This fictional story was constructed as part of a dissertation project that explored early interventions for preschool boys. It was found that this book could be a helpful way to address physically aggressive behaviors. Rex Wrecks is a fun and colorful story with characters that young children and readers of all ages can identify with and enjoy together.