Darling (pounding table): "Now look here - you're all rolling in cash and we are broke. So you are going to give us piles of cash?"
Oil companies: "No we're not."
Darling (muttering): "Windfall tax...."
Oil companies: "Just you try - and we feck off to Ireland."
Darling (meekly): Biscuit, anyone?
Courtesy of Marquee Mark in a comment.