A blonde signs up for research project testing "smart" pills. Amazingly, the pills work and the blonde becomes smarter. So she dyes her hair and becomes a brunette. One day, she is out driving in the country and spots a farmer in his field with his sheep. She decides to test out her new-found smartness, so she stops and walks up to the farmer. She says, "If I can correctly guess how many sheep you have in your field, can I have one of them?" The farmer, thinking it was a safe bet, says, "Sure." She says, "578." The farmer says, "Wow, that is correct. I guess you can pick out your sheep." So, the blonde picks out a sheep and puts it in the trunk of her car. But before she call pull away, the farmer says, "Wait. If I can guess your original hair color, can I have my dog back?".