[eranation]

Yeah, I mean, there are companies out there, that (for the goodness of heart or marketing or both, and I prefer if they did it for marketing because that would make it sustainable) who drink the milk as soon as it hits the shelf, and immediately tells the grocery chain to remote it.

tl;dr - there is financial interest for some companies to not have cooldowns and detect poisoned milk immediately.

More accurate analogy is a food tester for a king I guess, if your replace king with "everyone", (and the food tester did it for inbound traffic for his product and didn't risk their life for it)