It's a familiar sensation for all veterans. That tense, roiling pit in the center of your stomach. The pounding of your heart in your temples. The first twitching sensation of sweat beginning to bead all over your body. All wrapped around the big, twisting ball of tension that you know means something big is about to go down, and not only can you not stop it, but you know you'll be swept up in it and have to struggle with all your strength to get through. And all while you’re surrounded by an impenetrable fog of pumpkin spice and hordes of shrieking, greedy children. That's right, it's holiday shopping season. And hell hath no fury like a youngster without just the right Lego.