He almost flinches himself, before realizing she's speaking to the tiny companion things-so instead, he's left to look rather...worried. On the one hand, he's rather certain this won't end well. At all. Technically they're supposed to let things just...happen but...

"If you insist..." he finally decides, nodding worriedly. "However-I, the man Gongenzaka, must caution you...the Ringmaster for this Carnival insists upon a very steep, and very precise form of payment for damaged property..." She can take that however she wants. Maybe it means she could Totally Just Break The Machine. Clearly.

(He's definitely just worried about that hammer slamming on something it shouldn't)