DOYLESTOWN, PA - MAY 3: A dog named Gracie Vinyl wears a jockey costume during the second annual Strut Your Mutt with Roxy at Fanny Chapman Park May 3, 2014 in Doylestown, Pennsylvania. Roxy Reading Therapy Dogs, a nonprofit group that uses dogs to promote literacy and to comfort children in crisis hosted the event, and encouraged dogs and their owners to wear hats in honor of Kentucky Derby Day. (Photo by William Thomas Cain/Cain Images)