Until the week there's a national toilet roll shortage and you have to shut the office for a week because you don't have any toilet roll and lose $100,000s. Bo

Until the week there's a national toilet roll shortage and you have to shut the office for a week because you don't have any toilet roll and lose $100,000s. Both our examples are glib, but it's very easy for JIT to turn in to a "penny wise, pound foolish" scenario, where you're saving small amounts of money, but occasionally losing big amounts of it because of those savings.