Chance would be a fine thing

An informal UK expression usually said when something is wished for or postulated but is unlikely to happen. For example, the statement, “I would hate to be a multimillionaire”, might invoke the reply, “Chance would be a fine thing.” It has been a retort or a catchphrase since the late 19th/early 20th century. It is not heard very much these days when more preferred expressions might be in your dreams or fat chance.