article_snippet: Customers search on the iPad for Customers items, place an order and pay at a self-service kiosk.
article_snippet: Then Customers goods are placed on a counter for their goods to collect.
article_snippet: The transaction can be carried out without so much as a please or thank you to a member of staff.
article_snippet: the world’s smoothest, crispest banknotes — in which case you’ll need to call on the hovering assistant, who is busy helping half a dozen other confused people.