One Piece Chapter 1, page 31: Romance Dawn

Higuma kicks Luffy repeatedly, calling him a "stubborn little......brat!!" Luffy refuses to back down, grabbing a wooden stick and swinging it, then biting Higuma's arm. Higuma shakes him off, annoyed: "I was just drinking and talking to my men. I didn't say anything to offend you." Luffy screams: "Yes you did!! You'd better apologize!!!"