eating itself

A blonde was sick and tired of hearing jokes about being dumb. She decided to dye her hair black and set out to prove to the world just how wrong they were about blondes. She drove out of the city and into the country where there were many sheep farms. She spotted a sheep farmer, stopped her car and said, "If I can tell you exactly how many sheep are in your field, will you give me a sheep?" He said "Sure!" She counted and said "131." The farmer said, "That's Right! Go ahead and get a sheep." The blonde went and got her sheep. Then, the farmer said, "If I tell you what color your hair really is, can I have it back?" and she said, "Yes." "Blonde. Now give me back my dog.