A native American shaman had an apprentice

One day the apprentice said to his mentor, "You take long trip. I try be shaman for summer."

The shaman asked, "Why should I take trip?"

The apprentice tried bribery. "If you take trip, I feed you belly full."

The shaman agreed, so the apprentice gave his mentor a big meal, and the next day the shaman left on his long trip.

But the apprentice turned out to be a terrible shaman. Within a week, the chief could not take it anymore, and left to search for the old shaman. He found him and begged, "Please come back to tribe."

The shaman asked, "Why should I come back?"

The chief tried bribery. "If you come back, I feed you belly full."

The shaman agreed, so they both went back, and the chief gave the shaman a big meal.

When the apprentice saw his mentor had returned, he asked, "Why back so soon?"

The old shaman explained, "Full me once, shaman you. Full me twice, shaman me."