A government social worker was visiting the Indian reservation for the first time.

Over by the store, a woman was yelling up a blue streak at an old Indian man. The man looked like he could use some help. The social worker walked over and broke up the disturbance by pulling the man aside.

"Hey, that lady sure has your number."

"She no lady. She my wife."

"You don't say. What's her name?"

"Wife name 'Three Horse'."

The social worker smiled. "Now that's a strange name. Three Horse. Yep, that sure is a strange name. How did she get a name like that?"

"Nag nag nag."