One Piece Chapter 27, page 23: The Plot

Usopp stands up, clenching his fist, and yells with fierce determination, "Since everyone thinks I'm a liar, then this will just become one of my lies! In order to protect the village, I'll protect this village myself and prevent the pirates from attacking!" Luffy, Zoro, and Nami watch him, surprised by his resolve. Usopp sits back down, looking at his hands, and mutters quietly, "Although they... fired guns at me... and they chased after me with broomsticks... here... in the village where I grew up!"