Maci Barnes, 4, gets a furry welcome from Celina Police K-9 Officer Nick during a special outing Monday for preschool students of the Mercer County Educational Service Center, housed at Cheryl Ann in Celina. Barnes classmate, Adrian Dreffer, 3, is a bit apprehensive of the friendly creature, which performed a demonstration for the students with handler Celina Patrolman Dan Hartings.