In reply to russellcampbell:
I saw Larry Adler on stage a few years before he died and he told this tale:
Adler gets into a London cab and gives the cabbie directions. They set off and the cabbie says " You're that Larry Adler bloke aren't you? Mouth organs and stuff."
Adler replies, "Yes that's me. I'm also known a a raconteur."
Cabbie: "Raconteur? Oh. jokes and stuff. Here, I've got a good joke for you!"
He then tells Adler a long and particularly unfunny joke, and finishes by asking him what he thought of it.
Adler replies, "Ive written a book. It's called "Jokes and How to Tell Them." You should read it."
Cabbie retorts: "You should read mine, squire. It's called "Harmonicas and Where to Shove 'Em"!