 Chihuahua, a hot-tempered Latina love interest of Doc's, sings in the local saloon.She runs afoul of Wyatt trying to tip a professional gambler off to his poker hand, resulting in Wyatt dunking her in a horse trough.Doc, who is suffering badly from tuberculosis and fled from Clementine previously, is unhappy with her arrival; he tells her to return to Boston or he will leave Tombstone.