The 20% off coupon in your junk drawer wasn't a marketing gimmick — it was a slow-acting poison that Bed Bath & Beyond willingly drank for decades. We trace how one retail giant built a loyalty empire on a discount it could never take back, attracted a meme-stock frenzy that made a handful of people rich while employees lost everything, and why the executives who ran it into the ground walked away with millions. This is the story of a company that understood retail psychology perfectly and used that knowledge to destroy itself.