Why the Dog is a Mans best Friend

Tangata (human) and his dog named Tama (Ben) were walking threw the forest and all of a sudden Tangata tripped on a rock and fell into the Clutha River which was the fastest flowing river in New Zealand. Tama watched as the Tangata fell into the river. As the Tangata struggled in the water Tama jumped in after him. Tama swam as fast as he could to catch up to the Tangata. Tama could see a rock sticking out of the water about 100 metres away from the Tangata. Tama swam even faster and caught up to the Tangata as the came close to the rock Tama started to pull the Tangata in front of the rock as the both crashed into the rock Tama was able to pull the tangata onto the rock then Tama jumped back into the water and he was strong enough to swim to the side of the river he grabbed a big long log and pushed it over the river then somehow the log rose into the sky and placed its self between the rock and the land Tama ran across the log and grabbed the Tangata and pulled and pulled him to dry land. And tanks to the dog the Tangata was saved and that's why the dog is a mans best friend.