Are Sir Ken Morrison and Andy Bond secret Sainsbury's shoppers in their spare time?

The former chairman of Morrisons and the current chief executive of Asda can often be found wandering the aisles of Sainsbury's Harrogate store with a basket full of goods, according to its store manager Andy Stanbridge.

They could be testing out what the opposition has to offer, of course, but I'd like to think that they were doing their weekly shopping.