More often than not, Calloway doesn't take kindly to threats. Just when his hackles start to raise, and he starts to look like he's gearing up to throw Arthur out of the shop, the notion of getting in legal hot water or worse over something to try to sell seems to be enough to stop him in his tracks.

He doesn't like it, but he gives Arthur the mask for a mere 50B, tacking on that Arthur will "owe him a favor" down the line, but there's not much resolve in that. (Mostly, it just seems like he wants it out of his shop as quickly as possible, but doesn't want to make this sort of argument a habit.)