For at least two centuries, Anglo-American courts have responded to a party\u27s evidence tampering by allowing the opponent to argue to jurors that they should draw an adverse inference against the offending party in deciding the merits of the case. This Article argues that the use of such inferences, and invitations to draw them, should be radically curtailed, not only because of the ambiguities and risks of prejudice that such inferences entail, but more importantly because they reflect and contribute to a confusion of roles in which the jury is enlisted to participate in the management of the pre-trial conduct of litigants with regard to evidence preservation, preparation, and selection. This management is properly the job of the judici...