Well, I must say after 16 odd years in France I do find UK shopping on a par with road rage. I'm sure other GNers in the Hexagon will agree with me. This is the scenario at a French supermarket ..... Madame (sorry ladies, but men hardly ever do this) watches the contents of her shopping trolley (could feed a smaĺl 3rd world country for a month) being zapped, transfers, in a leisurely fashion, the groceries into multiple bags in her trolley, opens her handbag, ruffles through her cards like a Mississippi gambler, selects one....... then remembers she has various money-off vouchers, so they all need to be discussed, quibbled, finally accepted, and oh,hallelujah. .. the bill is processed. There then follows an intimate conversation if you are unfortunate enough to be behind a shopper who knows the cashier. And finally your groceries are being scanned by a stroppy check-out assistant who reminds you that the shop will close in one minute,so you will have to wait to be let out, and gives you the sort of glare that says......' Brits have no idea about a lunch hour'.
But it's even worse if the one in front of you is paying by cheque ( still a totally acceptable method of payment ). And ..... no-one in the queue, however long, complains ....... unless you are an expat!