Potato Blonde Joke

So there is a blond, red head, and a brunette and they are all sneaking on a train. once they were all on the administrator came to check, so the red head goes to hide with cows and the brunette went to hide with the pigs, and the blond went to hide with the potatoes. the administrator stuck her head in the cow cart so the red head say moooooo! so the administrator moved to the pig cart and the brunette says oink! so she moves on, next she walks to the potato cart and the blond goes…. PAATAATOO!(potato)….