of privilege. See, e.g., von Bu- low . von Bulow (In re von Bulow), 828 F.2d 4, 102-03 (2d Cir.1987); In re Sealed Case, 676 F.2d 793, 817-18 (D.C.Cir.1982). XYZ does not contest the occurrence of such a waiver (indeed, it never listed the call on its privilege log). Rather, the bone of contention is