One Piece Chapter 12, page 8: Chapter 12: DOG

Before anyone can grab the key, Chouchou walks over, sniffs it, and swallows it whole with a 'CHONK'. Luffy, Zoro, and Nami stare in absolute shock and disbelief. Luffy grabs the dog and begins shaking him violently, screaming, 'Cough it up!! That's not food!! Gimme that key!!' The dog whimpers, 'Yipe yipe!', while Luffy continues to yell, 'Dumb dog!' and shakes him as the cage rattles with a 'KLANG KLANG'.