Look, if the train likes to make things difficult for them, then it might as well tolerate having to listen to all these shenanigans going on while the two of them are giving feedback. It's revenge!

.. the mildest revenge ever, but it's still revenge, alright.

"That's why we have to remind it though! I mean, isn't it incredibly rude to just dismiss people's concerns like that?" 'Incredibly rude' still feels like an understatement though, considering the severity of it all. "At the very least you could do something nice for the kids you brought here! You're making them fight at their age, when maybe they wouldn't have had to otherwise.. They seem super into art, give them that art car! Or give them a break! No, just.. just give all of us a super huge break!"

He's dramatically gesturing for emphasis as he's speaking too.

Which means he's just wildly swinging their joint hands around.