(Referring to the piano's natural shape) Isn't it a shame when those big fat opera singers lean against the pianos and bend them?
(Responding to a sneeze from the audience) Who exploded?
Read (this book), smile, enjoy, and if you happen to learn something along the way, don't get upset.
A Smile is a curve which can set a lot of things straight.
...the elephant smoked too much.
If I have caused just one person to wipe away a tear of laughter, that's my reward.