I recently read that Tesco is opening its first self-checkout store in the UK. This seems like a spectacularly bad idea, not because of job losses or a possible increase in food theft, but because self-checkout machines waste more time than they save.
I occasionally pick up a few things at the busy Sainsbury's supermarket on Buchanan Street. Though I should know better by now, I often use the self checkout in the hope of beating the queues, turning food shopping into a battle between me and the infuriatingly polite checkout machine.
On a recent visit, I touched a button on the screen to indicate that I had my own bag.
"Please place your bag in the bagging area," the machine said kindly. I put down my Envirosack.
"Please place your bag in the bagging area," it repeated. I picked up the bag and slammed it back down.
"Please wait for an attendant to verify your bag," I looked around and the sole attendant was helping another woman who, like me, was failing at buying her food.
"Please wait for an attendant to verify your bag." Now the attendant was helping someone else. I seethed.
"Please wait for an attendant to verify your bag." Finally, the attendant came over and swiped his employee card, allowing me to continue checking out.
I scanned my first two items without a problem - and then I got to the pepper.
When you buy loose items like fruits and vegetables, you have to choose which category they belong to on the screen and indicate how many you have. I looked through the vegetables section. No pepper. I checked it again. Definitely no pepper.
I must have looked confused because the attendant came over and asked I needed help.
"I can't find the pepper," I said lamely.
"It's in the salad section," he said, pointing to the screen. And sure enough, there it was. Not a vegetable. A salad.
I paid with my debit card, put the card back in my wallet and put the wallet in my bag.
"Please take your items from the bagging area," the machine said as I struggled with my bag zipper.
"Please take your items from the bagging area," it instead again.
"Damn it, will you calm down?" I shouted.
Shoppers turned and stared. I grabbed my bag and rushed out of the store. The self-checkout machine had won - again.