There was a blonde girl driving down a country road. She saw a farmhouse, and pulled up into the driveway. The farmer came out and asked her what she needed.
She said, "If I can guess how many sheep are here, can I have one?"
"No, I can't do that. You are a blonde," says the farmer.
That night the blonde went home and dyed her hair brown. She returned to the farmhouse the next day, and once again the farmer came outside.
"How can I help you, young lady?" asked the farmer.
The girl replies, "If I can guess how many sheep are here, can I have one?"
The farmer says, "Sure, as long as you're not a blonde."
The girl says, "You have 14 sheep."
The farmer says, "Correct! You can take home one of my sheep."
Just as the girl was pulling out, the farmer stops her and says, "If I can guess your natural hair color, can I have my dog back?"