Oops! She did it again. For the second year in a row, Miss USA fell down during the evening gown competition at the Miss Universe competition. Crystle Stewart, a Texan, tripped on the train of her bejeweled evening gown as she made her entrance Sunday night in Vietnam. (NBC did the telecast.) During the 2007 Miss Universe contest in Mexico City, Miss USA Rachel Smith also tumbled during the evening gown competition. Smith became a star on You Tube. Now she has some company. BTW, Miss Venezuela won.