If memory serves (and with Rampant CRS it seldom does) wasn't the "Its not over till the fat lady sings" one of the Late Great, Victor Borge lines from his monologue about Mozart?(from back in the 60s )
The mother of a friend, used to misquote wonderfully in the manner of Mrs Malaprop on of her more memorable lines being "The sea was as calm as a Mildew" and "a stitch in time shaves nine" ( never did understand that second one)