Found it

From Fallen London Wiki
A player-created Guide is available for this content: Polythremic Promenade (Guide)
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This page contains details about Fallen London Actions.

From: Jack's House


It's barely even work. The Clay Men are a guileless lot, and they all know the place.

Unlocked with COGNISANCE 12, Unnatural Exuberance exactly 1


Success

The Cheerful Cutler

[…]you notice […] scorch marks.[…]

The Cheerful Cutler […] smiles.[…]

When you tell him about Jack-of-Smiles and his knife, he slumps[…], appalled.[…] He swears he'll leave Polythreme […] he's certainly not going to make any more knives for export.

Description summary:
The Cheerful Cutler knows nothing, and there's nothing unusual about his tools. When you explain about Jack's knife he's appalled. He won't make any more knives.

[Find the rest of the story at https://www.fallenlondon.com]