Your guess is as good as mine.

[Fiora's standing a couple yards from the man when he talks out loud, and she can only assume the comment was directed at her. As she turns away from the preserved organ she was looking at with little interest, her metal heels clack on the floor.]

I helped cut a bunch out of these creatures a few hours ago, but... they never mentioned any kind of catch. Unless the catch is all the work you've got to go through to get it. It was pretty messy.