Many of the stores I go it is isn't possible to be as fast as the cashiers because the self-checkouts has painful "security" checks so you need to wait between

Many of the stores I go it is isn't possible to be as fast as the cashiers because the self-checkouts has painful "security" checks so you need to wait between every item by putting it on the scale and wait for it to stabilize and collect a weight. And God forbid you have more items than fit on the scale! It will just lock up until you can flag down the one attendant for an override.