The expression on Sai's face fell back into a blank neutral as Usopp spoke, only becoming a smile again once he was finished. "I didn't mean to insult you," he said. "I know you're not incapable of fighting." He looked away, seemingly having difficulty expressing things the way he wanted. "There are just always things, creatures or people, here that we might not expect. I would... prefer to know that my friends had someone to watch their back."

The smile remained as he returned to slowly gathering up the lawnmower pieces, eyes focused down on his task. "That's all."