One Piece Chapter 29, page 2: Slopes

Usopp tries to bluff, pointing dramatically and shouting, "I'm warning you! Retreat now!! I have a 100 million crewmen waiting to kill you all!" Jango is initially shocked and gullible, crying out, "What!? 100 million crewmen?!" and his crewmen panic. However, the smarter crewmen quickly point out that Usopp is lying, saying, "Captain! He's only lying!" and "Only an idiot would fall for that..." Jango realizes he's been fooled and gets angry, yelling, "You bastard, how dare you lie to me... Do you think we're 2 year-olds?" while Usopp sweats, realizing his bluff failed instantly.