A blonde desserts her home town out of shame, and colors...

A blonde desserts her home town out of shame, and colors her hair brown. She drives past a farm and sees all the sheep. She goes up to the farmer and ask, "If I guess how many sheep you have can I have one?" The farmer nodded. She continued. "159" The farmer is surprised. "How did you know?" "Lucky guess" She grabs one and gets in her car. The farmer comes up and says, "If I can guess your real hair color can I get my dog back?"