A play in china called Tuoling legend, includes 30 trained wolves moving from stage to the audience by yasirshoro95

Most working dogs don't consider what they do work. It's all a game to them. They find the drugs, they get a toy, they don't get that there's any meaning to cocaine than "tell my partner and I'll get a ball". Live stock dogs are the exception. Those sheep are their family, they fully understand that they are the only ones with the teeth to protect them they'll rip you apart if you try to hurt them.