Heard the one about the stoat and the prawn?
I thought Gordon Brown got the slight edge over David Cameron in Wednesday's Queen's Speech debate.
But the Conservative leader got an excellent laugh when he pilloried Mr Brown's Government Of All The Talents - the so-called Goats - distinguished outsiders who were brought in as ministers in the Lords without ever standing for election or getting their hands dirty in politics.
But five of the Goats - Digby Jones, Mark Malloch-Brown, Stephen Vadera, Stephen Carter and Ara Dharzi - have now all left ministerial office.
"The only jobs this prime minister has created are for his cronies," said Mr Cameron, "all of whom have repaid his generosity by leaving his government at the first opportunity - but of course keeping their well-upholstered seats in the House of Lords.
"Never has so much ermine been wasted. Never have so many stoats died in vain. Never mind jobs for the boys - under this prime minister it's stoats for the goats".
It was a variation on a wonderful 17-year old joke by Michael Heseltine from back before the 1992 election, when he taunted Labour leaders Neil Kinnock and John Smith for trying to woo the financial community with a series of lunches and dinners in the City of London - what became known as the prawn cocktail offensive.
"All those prawn cocktails for nothing," Mr Heseltine told MPs. "Never have so many crustaceans died in vain. With all the authority I can command as secretary of state for the environment, let me say to the Labour leader 'save the prawns'."