One Piece Chapter 43, page 7-8: Sanji Enters

Nami kneels on the deck, looking through a pile of papers. She asks, "WHAT'S ALL THIS, JOHNNY?" Johnny, resting his head on his arm, replies, "OH THAT? THOSE'RE JUST THE BOUNTY POSTERS, SISTER." He explains, "IT'S JUST ANOTHER TYPE OF BUSINESS. KILL ANY ONE OF THEM AND YOU'LL GET THE BOUNTY REWARD WRITTEN IN THE POSTERS." Nami stares intensely at one of the posters, her expression turning dark and troubled as she tightly crumples the papers in her hand. Johnny notices her reaction and asks, "IS SOMETHING THE MATTER?" Suddenly, Usopp screams in terror from the railing, "GUYS, WE'RE IN DEEP SHIT! THE BASTARD'S AIMING HIS CANNON AT US!" On the Marine ship, Fullbody coldly orders his men, "SINK 'EM." A Marine soldier prepares to fire the cannon, replying, "YES, SIR!" Luffy looks up in shock, shouting, "WHAT!?

The Marine cannon fires with a loud blast. Usopp screams, "HE FIRED!" and panics, "LUFFY, WHAT'RE YOU DOING!?" Luffy leaps into action, shouting, "LEAVE IT TO ME! GOMU GOMU NO... BALLOON!!!" He inhales deeply, inflating his body into a giant, round rubber ball. The cannonball strikes Luffy's inflated stomach, stretching his rubber skin but failing to pierce it. Luffy grins and yells, "YOU CAN HAVE YOUR CANNONBALL BACK!" as his body prepares to slingshot the projectile back. Fullbody and his crew watch in utter disbelief, crying out, "WHA!?" and "THE HELL!?