At Taylor's apology, he was quickly back in Petunia Krump's good graces.  "Well, just do be more careful in mixed company," she reminded him anyway, looking victorious that she'd brought a bit more civility to the world today. 

"I ain't a [i]baby[/i]..." the kid glares back at Taylor, as if that was the implication by suggesting he needed taken care of.  "How should I know if she got friends?  I never even met her 'fore!"

At this point, the friendly conductor gets up from where he'd been quietly chatting with the well-dressed fellow at the back of the train and moseys up the aisle, perhaps having overheard some of the questions or perhaps just worried that the boy is bothering them too much.  "All alright here folks?  I can have Zeke here come sit with me."

"I ain't even doin' nuthin'!" the kid (Zeke) whined. Then proceeded to make subdued gun-shot-like sound effects out of his mouth as he mocked shooting all 6 of them in turn.