public static function shouldReceive()
    {
        if(!isset(static::$mocked[static::registerAlien()])) {
            static::$mocked[static::registerAlien()] = Mockery::mock(static::registerAlien());
        }

        return call_user_func_array([static::$mocked[static::registerAlien()], 'shouldReceive'], func_get_args());
    }