A shepherd is thought of something totally new and original.

After his dead dog, you could not afford a new dog. Then he visited a local park with wild animals. There were very few sheep, and someone had put a poster wolf near them, and they did not want to bring the poster.

When he saw it, gave the poster to make a great wolf-head and now it carries with it every time you go to keep sheep. Although this is not a real dog, proved to be very effective.