Usopp's hands flew to his mouth as soon as Sai snapped, to cover it in Sai's stead since the ninja was a little busy at the moment. He'd said something wrong, again. Worse, this time he really didn't know what it was. As soon as his trail of ingredients had started to run down he'd known he'd screwed up, but this time?

Then again, Sai was a ninja. Ninja probably learned things like torture and interrogation on top of how to stab people really well. Usopp should really stay out of it altogether. Maybe it was possible the man just stumbled in, but Usopp didn't think so. Sai obviously didn't think so either. Was Sai going to torture him?

Usopp really, really didn't want to see that, but kept his hands over his mouth still, staring at Mello with a mixture of curiosity, alarm and chagrin.