The Serendipity of a Sauce

I've always wondered how certain delicacies were devised in the first place. Here is the story of one from an article about the Roman garum, "Ancient ketchup":

The India-inspired English Worcestershire sauce is another. Worcestershire was invented quite by mistake in the 1830s, after a barrelful of an attempted anchovy sauce turned out too pungent and was left in a basement and forgotten. When it was finally opened years later, the liquid was discovered to be quite tasty, and Messrs Lea & Perrins (whose basement it was) marketed it very successfully.