Honestly in a big conglomerate shop like B&Q or similar never. These sort of stores you can't be alone for 2 seconds without someone going "can I help you? are you finding everything you need today?". It's irritating.
Which B&Q was this? It was a frequent occurrence in my store to be closing at the end of the night and realise that there were only 4 of you in the store, manager and cashier included and this had been the case since 4 o clock but you had just been so busy running round like a blue arsed fly that you hadn't noticed.
It was all perfectly neat and tidy.
Please identify this store so we can give then an award. Ours was through a warehouse with 2 forklifts, 2 ppts, 2 wave machines, 3 pump trucks, any of which could be active and working round each other, numerous things that are sharp, explosive if mishandled, toxic, corrosive, heavy and/or unstable. You also had to pass the cash office and cloakroom which has no cameras and the toilets were often filled up with power tools on promotion as it was the only secure place to stash them and you had to climb over them to reach the sinks.
Again. Like fuck would the public be allowed in under any circumstances even if someone were available to take them.
WE can't even go in without a high viz and steel toe shoes. Random members of the public would be a health and safety nightmare.