But in the end won't it be the cashiers who will suffer/be blamed, instead of management hiring another one to help carry the load? I mean, even if you ask to speak to the manager, and wait for them, and say, "obviously you've understaffed this shift, so you need to open a register yourself and start ringing people up, you can start with me," they are just going to blame the poor cashier who got stuck with Grandma's coupons and check-writing or whatever. Or if they are decent, they're already working a register, and it's someone higher up who refuses to hire more staff, despite having a "ghost job offer" that sits out there to look like they're hiring.