I was watching the price going up on the display, and not the actual hole in the side of the car where the fuel goes in.
For UK pumps you actually need to stand there and physically hold the pump nozzle the whole time. If you let go it is spring loaded and it stops pumping.
Of course, you don't have to look right at it while it is pumping...
That's caused by the mechanism described in the article. If you squeeze the handle hard you get a fast flow. This can cause the gas to splash back into the nozzle and cuts off the flow because it appears that the tank is full.
For UK pumps you actually need to stand there and physically hold the pump nozzle the whole time. If you let go it is spring loaded and it stops pumping.
Of course, you don't have to look right at it while it is pumping...