About the Book Calvin and Calley along with their best friends get a chance to practice Officer Friskys advice when a stranger offers them all the candy they can eat during recess. Book Synopsis Theres a special visitor at Calvin and Calleys school today. Its officer Friskey, and he shares a very important message with all of the students. Hes here to talk about strangers and why kids should never talk to a stranger, take anything -like candy- from a stranger or get a simple ride home. Officer Friskey says it is not safe and that children should tell a trusted adult if a stranger approaches them. Calvin and Calley along with their best friends get a chance to practice Officer Friskys advice when a stranger offers them all the candy they can eat during recess. They tell the stranger no and quickly report to their teacher, Miss Buttercup.