If you turn in to an aisle and there's, say, several people already in that aisle do I have to stay back at a safe distance and allow them to do their shopping first or can I overtake them staying as far away as possible from them?
I was in Tesco earlier today and a woman already in the aisle kept stopping and starting, picking up various items from different shelves and reading whatever was written on the packaging. I thought if I stay behind her and let her finish browsing and have to do the same in the other aisles every time somebody is already in front of me it's going to take me all flipping day to do my shopping.
I decided to overtake her and get out of the aisle and she turned round saying "6 feet, 6 feet".
What's the correct way? What does everybody else do?