Was Trina from Argentina? Or, maybe Pasadena? Perhaps Trina was a ballerina? Did Trina eat Purina? Nobody knows. But what we do know is that Trina is a two-year-old Shepherd mix who arrived as a stray on January 14th at the Sampson County Animal Shelter in North Carolina. Shelter staff found Trina to be very friendly with the staff, other dogs and even cats. Her only downfall was that she tested heartworm positive, and that put her life at risk at this high-kill rural shelter.