eggs and baskets
Good Friday fun! From biiter personal experience, it was really scary having to prowl the aisles of my local Somerfield in person ;-)
Where Joe wrote: "some observers scratching their heads about what exactly had gone wrong", I though surely Sainsbury's know all about eggs and wouldn't put all of theirs in one basket. I certainly, from a business continuity perspective, would counsel separate data centres for 'warehousing' and 'customer records'.