Scruff McGruff shakes hands of kids at the Child Development Center after explaining the “Stranger, Dancer” concept at Ellsworth Air Force Base, SD., May 17. Scruff McGruff explained there are good strangers such as cops, fire fighters, doctors and there are also bad strangers, if they come across bad strangers to yell “Stranger, Danger!”. (U.S. Air Force photo/ Senior Airman Adam Grant)