Through the thick brush behind a big-box store, two figures emerge:

A tall man wearing cargo pants and his best friend, whose collar jingles every time he takes short four-legged strides.

Dana Williams and Harley — his tan and white pitbull and Jack Russel terrier mix — come down the hill to meet Cat Armbrust of the CoMo Mobile Aid Collective and Melody Whitworth of Unchained Melodies.