Enjoyed this, Joe. Once when I worked at a nonprofit thrift store I ran a St. Patrick’s Day special: Everything green will be 50% off (meaning, of course, green blouses, green toys, etc.). But in my ignorance I overlooked the fact that our price stickers (all of them) were green. Customers were demanding that furniture and everything else with a green sticker, which was everything in the store, get the 50% discount.