[collectedparts]

Trader Joe's cashier bells have entered the chat. Ironically, the "request assistance" button and accompanying blinking light on top of your stand at self-checkout are the "self-managing" version of that where you as the customer are partly an employee. oh well

[ButlerianJihad]

I was at a Safeway last month, and I asked the overseer guy what the lamps meant on top of the self-check machines, and he said he honestly didn’t know.

[Cthulhu_]

where I live, they light up when the self check-out needs a member of staff to do an age verification or spot check. Or I suppose when there's an error, but that's not as common.