One Piece Chapter 36, page 14: HUNTED!!

Luffy, his face shadowed with intense anger, glares at the laughing pirates. He warns them in a low, terrifying voice, "IF YOU DARE LAUGH AT USOPP AGAIN, I WILL... KILL YOU ALL!!" The pirates' laughter instantly dies, and the skinny cat-eared pirate looks on in shock. Meanwhile, Zoro faces Buchi, who is charging at him. Zoro says calmly, "...HEY! BUCHI NEKO. YOU MORON. DON'T GET IN THE WAY. I THOUGHT I ALREADY WARNED YOU..." as Buchi screams, "SHHYAAA...!!!" and their weapons clash violently (SFX: CLASH!!).