A cowboy was walking in the woods one day and he came to a clearing. There on a blanket was a naked Indian with an erection.
"What are you doing?" the cowboy asks.
The Indian answers, "Me tell time."
"OK. If you are so good, what time is it?"
The Indian looks down at his penis and the shadow it made and said, "It 2 o'clock."
The cowboy looks at his watch and says, "By golly, you are right!"
The cowboy starts walking again and comes upon another naked Indian laying on a blanket. "Don't tell me. You telling time also?"
The Indian looks up at him and says, "Yes, me telling time."
"Okay smartass, what time is it?"
The Indian looks up at the sun and down at his penis and says, "It 4 o'clock."
The cowboy is amazed at the Indian.
He keeps walking and a couple of hours later he comes upon an Indian on a blanket, masturbating. "Don't tell me you are telling time!"
The Indian looks up at him and says, "No, me winding watch!"