I was checking myself out at Wegmans (waits for jokes, pauses, continues), and four items from the end, the machine just stopped scanning. You know the red laser pattern that flashes, it didn't even flash any more. So I notified the person attending the self-checkout-area, and explained what had happened, and she notified someone else, and the first one started explaining what happened to the second one incorrectly, so I interrupted and explained what happened correctly, and when I was done, they did some tests (trans: they tried to scan my items themselves), and while they were doing that, I suggested, "maybe it ran out of photons". They laughed.
So I went to another register to finish checking out (they had a professional do it this time), and after I was done, on my way out the store, I pass by the broken stall, which they appear to be disassembling, and I ask, "going to refill it?"
I crack me up.