One Piece Chapter 35, page 3: THE STEEP SLOPE AGAIN

The three kids leap onto the fallen Kuro, screaming, "YOU INGRATE BUTLER!!" and "DIE, YOU BASTARD!!" They beat him relentlessly with their shovel, bat, and racket. Usopp and Kaya watch in absolute shock, with Usopp yelling at them to stop and asking how they even got there.