fense." Id. See also, e.g., GAB Bus. Sews., Inc. v. Syndicate 627, 809 F.2d 755 (11th Cir. 1987) ("If 627 introduces evidence as to the strength of JDA Farms' case-as 627 must to prevail—it cannot hide behind the shield of privilege to prevent GAB from effectively challenging such evidence."). It is the ru