One Piece Chapter 1, page 42: Romance Dawn

Out on the open sea, Higuma has escaped on a small rowboat. He laughs hysterically: "Ha ha ha ha! What a brilliant escape! And nobody would ever expect a mountain bandit to hide out at sea!!" He looks down at Luffy, who is tied up: "I brought you along as a hostage... but I no longer have a use for you!" With a cruel smile, Higuma kicks Luffy off the boat into the water: "Goodbye..." Luffy splashes into the sea, struggling: "You die! Unh"