You were in town with Luffy. It was your job to keep an eye on him, make sure he didn't do anything stupid or get lost, even if he wasn't as bad off as Zoro. You were walking across the square when Luffy smelled roasting meat and ran for his nose. However, there were workers coming from the other side with planks of wood, and everything happened kind of fast. Somehow they managed to hit Luffy in the head, which to everyone's surprise fell off his neck, from which flames started shooting out. You were shocked, but Luffy was perfectly fine. He was thrashing around, waving his arms as he tried to signal you something.