repeat after me
hey.
if I hear a funny joke and can recall it properly, recount it properly and keep the delivery okay then I'll repeat it. I'm certainly not going to go out to find the original author of the joke....or indeed pay them any royalties.
of course, *I* am not paid to make jokes or deliver a show - but if you dont want people to repeat your jokes, then dont say them in public, on twitter ...or at all. Jokes are like the Chinese take on copyright infringements - where its a form of honour to be copied - sure, it might be great to be the one who invented a one liner or great joke....prove that you did,
and on the serious/darker note - shall we also find the one person who came up with the Clapham 'joke', the various NASA 'jokes' etc etc - you see where this goes....