Just trawling through the internet to find a joke I had used to, "Prove me wrong" just seems a bit obsessive Wayne, that's all.
But hey, each to his own.
Take very much care ...KP 
Couples Warned: Beware the Four-Year Itch. Page 2
Quote: Charley @ April 13 2008, 1:12 PM BSTYea! I do not agree with thieving jokes however everytime someone passes a joke in a pub it is very rarely theirs is it?
I don't think KP meant it to be a pub joke though.
Sure comedy's derivative. Vic and Bob base some of their humour on Morecambe and Wise, but that doesn't mean they get Andre Previn to sit at a piano do they. I think that's what Wayne Lewis was getting at. The joke isn't all your own work and can't be seen as original.
Oh for pity's sake!
There's very few truly original jokes, and most of them are crap. It's an ancient howler so what? I've had at least 2 antique rewrites in NR.
Yes the 50p punchline is a little elderly. But the rewriting it as a contemporary magazine article, isn't. Frankly Viz do it all the time, and they still get my £2.
Music is for ever mxing up old beats, and most modern action thrillers owe a huge amount to westerns. How many Romcoms rip off Shakesperean scripts, and then boast about it!
The question is, was it funny? The answer is a resounding yes, unlike that dreary football version some one found.
Ant&Dec rip off Vic&Bob, who rip off Morcambe&Wise and I'll happily watch all 6.
I still remember the Laurel and Hardy paedophile special.