201 F.R.D. 272 (D.D.C. 2001); See also, Salter v. Upjohn Co., 593 F.2d 649, 651 (5th Circ. 1979)(It is very u

). An order completely prohibiting a deposition from going forward, however, is rare, and only resorted to in extraordinary circumstances. Salter v. Upjohn Co., 593 F.2d 649, 651 (5 Cir. 1979)(noting that it is very unusual for trial court to th prohibit the taking of a deposition altogether, and absent ext