Alisha Sands knew her son Zayde, 4, is left-handed, so when she saw he was writing with his right hand she asked why. He said his teacher told him his left hand was bad. So she wrote the teacher asking her to clarify what she said. The teacher sent back an article saying that in many cultures the left-handedness is considered "unlucky, inauspicious and frankly evil." The school district in Okemah, Oklahoma, says it is investigating.