One Piece Chapter 1, page 29-30: Romance Dawn

Makino runs through the village and bursts into the mayor's house: "Mayor! We've got a problem! It's Luffy... and the mountain bandits!" Meanwhile, in the village square, Higuma has dragged Luffy outside. Higuma holds Luffy up, amused: "You've got a strange body, boy. Our punches and kicks aren't hurting you at all." The villagers watch from a distance, terrified: "Hey! We gotta go help Luffy!" "Are you crazy? Those mountain bandits would kill us! Besides, Luffy's the one that started the fight!

Higuma pulls Luffy's cheek, stretching it out like rubber: "Eh, rubber boy? There sure are some weird creatures in the world..." Luffy struggles, yelling: "You jerk! You'd better take it back!!!" Higuma slams Luffy onto the ground and steps on his head: "Oof!" Higuma chuckles: "I've discovered a new life form... Maybe I'll sell you to a freak show... I bet they'll pay good money for you." Luffy growls: "Darn you!!! I'll make you so sorry for this!!