To be fair Mur you contradicted yourself in the chat. First you say not to take anything, only to tap in to Necrovion for research purposes, but then soon after say not to take big stocks, implying that, yes, Aethon can take what he wants, albeit presumably only a limited amount for himself. Then, when Aethon lays out his intentions (to grab what he wants and keep a list) you reply in the positive, whether or not that was to something else in the chat really should have been cleared up there and then, assuming it was. Assuming Aethon hasn't recruited 20 shades and spoiled the secrets of Necrovion, I would say he kept to the spirit of your agreement, at least from his point of view and any misunderstanding was innocent. So if anything, confiscate what he gained (creatures resources w/e) although I don't think that should happen.