If you want to see My Ass, come on down to the Bank Street Theatre. The world premiere of this tastelessly titled show is presented by the group, Little Artistic Value. When 12 people, ranging from a Wall Street professional to a “gammalambdaphobian” (whatever that is), enroll in the same acting class, these ASSinine “actors” learn that acting is not always art and life is not always logical. This wacky new comedy claims to have nothing to do with playwright and director Shon Little’s posterior.