annot hide behind the shield of privilege to prevent an opponent from effectively challenging pertinent evidence." Carless Const. Inc. v. Travelers CaS. & Sw. Co. of Am., 56 F. Supp. 3d 1259, 1273 n.40 (S.D. Fla. 2014) (emphasis added). Here, the e-mails are vital and necessary to defend against one or more e