"The Fifth Circuit has observed that ‘[m]otions in limine are frequently made in the abstract and in anticipation of some hypothetical circumstance that may not develop at trial.’ " Brown v. Carr , No. C-04-471, 2008 WL 167313, at *1 (S.D. Tex. Jan. 16, 2008) (quoting Collins v. Wayne Corp. , 621 F.2d 777, 784 (5th Cir. 1980) ).