True, but its the pressure of a long queue, and full trays of food, like two fish and chips, two rolls and butter, one steak pie and mash, three cakes at different prices and two teas and a coffee. All to be added in the head, all the while the queue is getting longer and the punters more impatient. Not helped by one clown, who thought I was fiddling the till, by demanding that I ring up the total. He seemed unable to comprehend the failure of the mains power. Idiot.