Quote from : The Hobbit: An Unexpected Journey Movie

Frodo: They're all coming. Except for the Sackville-Bagginses, who are demanding you ask them in person.
Old Bilbo: Are they indeed? Over my dead body.
Frodo: They'd probably find that quite agreeable. They're convinced you have tunnels overflowing with gold.
Old Bilbo: It was one small chest - hardly overflowing. And it still reeks of troll!