The unexpected item in the bagging area is me

There is a particular sound the machine makes before it accuses you. Not the beep, which is neutral and almost friendly, but the half-second of nothing that comes after it, the pause where a person would say sorry. Then the voice. Unexpected item in the bagging area. And you stand there holding a courgette, in public, waiting for someone with a key on a curly plastic cord.

The courgette is fine. The courgette has done nothing.

I have been thinking about these machines for longer than is reasonable, which is the only way I think about anything. The thing that interests me is not that they malfunction. Everything malfunctions. What interests me is that the malfunction is phrased as a suspicion, and that the suspicion is directed at you, standing there with your own money in your hand, having volunteered to do the job.

The shelf is a scale, which nobody tells you and everybody works out

Underneath the bagging area is a weighing plate. This is not a secret, exactly, but it is not announced either, and there is a difference between a thing being technically available and a thing being said out loud. The shelf expects a certain weight after each beep. If the weight it gets does not match the weight it wanted, it stops the transaction and summons a human being to look at you.

So the machine is not really checking your shopping. It is checking the gap between what you said you were doing and what actually happened on the shelf, which is a description of surveillance so tidy I am almost impressed. Put your own tote down too early: unexpected item. Lean on the shelf while you dig for your card: unexpected item. Set your phone down for two seconds to type in the number for loose onions, an activity the machine has itself required of you: unexpected item.

There is a reason the attendant never looks surprised. The attendant has seen the courgette standoff four hundred times. The attendant is not adjudicating; the attendant is unlocking. Whatever moral drama you feel yourself to be in — and you do feel it, there is a little heat at the back of the neck, the specific flush of being innocent and unable to prove it quickly — is happening entirely on your side of the transaction.

A digression about the trolley, which I promise is relevant

Some years ago I stopped being able to reliably get a trolley out of the rank of trolleys without a small physical negotiation with the trolley next to it, and I assumed for a while this was a personal failing of coordination. It is not. Trolleys nest at a fixed angle and the rank is set at a fixed spacing and neither of those numbers was arrived at by watching an actual person get an actual trolley out in February wearing a coat. The spacing is arrived at by how many trolleys fit in the bay.

Self-checkouts are the same arithmetic. Six of them in the space that used to hold two staffed tills and the magazine rack. The shelf is small because the footprint is small, the footprint is small because six is more than two, and the reason the shelf keeps accusing you of theft is that you had to stack the shopping upwards on a surface the size of a place mat. The suspicion is a side effect of the floor plan.

I find this genuinely consoling. It is nice, occasionally, to be able to point at the reason.

The unpaid job with the performance review

What we have collectively agreed to is that the customer now does the scanning, the bagging, the weighing and the troubleshooting, and in exchange the customer is monitored while doing it. The labour moved and the trust did not move with it. You get the work and the machine keeps the authority, which is the arrangement of every bad job anyone has ever had.

And the tone. The tone is what does it. The voice is bright and slightly parental, calibrated to be inoffensive, and inoffensiveness at volume in a shop is its own kind of offence. Please wait for assistance. Please wait for assistance. It is the please that gets me. There is no version of that sentence in which you are free to go.

I am not against the machines. I like not talking to anyone at eleven at night. I like the scanner going over a tin in one clean pass, which is a small competence and I will take small competences where I find them. I would simply like the shelf to stop implying things.

What I have decided to do about it, which is nothing

There is a school of thought that says you should refuse them on principle, queue for a person, make your position felt in the aisle. I respect this position and I do not hold it. The tills went and they are not coming back because I stood in a line about it.

So I have adopted a method instead, developed entirely through failure: bag last, keep the tote off the shelf until the end, never put anything down that is not a scanned item, and accept the light on the pole with the serenity of someone who has been here before. It works about as well as anything works.

The attendant came over on Tuesday, tapped in her code without looking at the screen, and said the thing they always say, which is that it does this. It does do this. She went back to her post between machines four and five, and I put the courgette in the bag, where it had wanted to be for some time.