"You have the right to remain silent." However... The fifth-grade girls and the fifth-grade boys at Laketon Elementary don't get along very well. But the real problem is that these kids are loud and disorderly. That's why the principal uses her red plastic bullhorn. A lot. Then one day Dave Packer, a certified loudmouth, bumps into an idea -- a big one that makes him try to keep quiet for a whole day. But what does Dave hear...