A principal notices a Post-It on a locker.
"Jocks of JFK High! This small change in diet can boost your physique FOREVER! Head to the gym to find out how!"
Puzzled, he pulls it off and continues down the hall. Just a few lockers down, another catches his eye.
"Hey goth girls! Tired of dark eyeliner that just runs all day? One simple trick will fix it! Find out in the gym!"