Actually I am not feeling even slightly grumbly about Tang, but I thought it would bring an artificially orange perkiness to whatever grumbles you managed to build, distinguishing them from once and future grumbles.
As much as I'm fascinated by this book about the Pinkertons, it may well be time for a break for some fiction. But I don't think I can blame this bone-weariness on the Pinkertons, alas.