just been to Morrisons to do a bit of shopping and wanted to buy some loose baking potatoes. Couldn't find any loose - only big bags - which I didn't want, so asked one of the blokes in that section. He told me there weren't any - but that he could open one of the bags and let me take however many I needed then they'd weigh them as usual at the till.
Made a nice change from the "no haven't got any you'll have to buy a big bag" 