Thorin: For the love of - It's just a dinner! Follow the instructions starting from the backside of the third page, second paragraph down, fourth sentence...
OR
Bilbo: So... When was the last time you filed taxes for the Mountain?
Thorin: I was thinking since there's a dragon holed up in there, I could, y'know, claim some of a deductible from one of those 'magical endangered species' charities? You can tell them he's been in there foreeeever, so, I'm gonna need some compensation. Yeah.
Bilbo: ... It says you haven't filed in years and anyways, they took dragons off the list last month.
Thorin:
Hope you like being bait.
Bilbo: Hmm?
Thorin: Nothing...