The travail and expense of discovery and trial cannot be reversed at the end of the case, yet this has never been thought sufficient to allow pre-trial appeals of discovery orders. See, e.g., Lauro Lines s.r.l. v. Chasser, 490 U.S. 495, 104 L. Ed. 2d 548, 109 S. Ct. 1976 (1989); Van Cauwenberghe v. Biard, 486 U.S. 517, 100 L. Ed. 2d 517, 108 S. Ct. 1945 (1988); Gulfstream Aerospace Corp. v. Mayacamas Corp., 485 U.S. 271, 99 L. Ed. 2d 296, 108 S. Ct. 1133 (1988). Indeed, even orders to produce information over strong objections based on privilege are not appealable, despite the claim that once the cat is out of the bag the privilege is gone. The court added in Powers v. Chicago Transit Authority, 846 F.2d 1139 (7th Cir. 1988), that refusal to produce the asserted-privileged information, followed by a fine in civil contempt, still is not an appealable final decision. (Contrast Sibbach v. Wilson & Co., 312 U.S. 1, 85 L. Ed. 479, 61 S. Ct. 422 (1941), which accepted an appeal when the party resisting discovery was jailed for contempt of court.) Powers declined to follow cases such as