I had an issue getting an item to scan in the self-checkout lane the other day. I've only used the machines a few times before. Eventually I got it to scan, b

I had an issue getting an item to scan in the self-checkout lane the other day. I've only used the machines a few times before. Eventually I got it to scan, but I'm pretty sure I would have been able to call over a member of staff to do it manually if not. In this case I wonder if an attempt at calling staff was made. If not, perhaps the instructions were not clear enough about what to do in that situation. After 17 minutes with frozen items melting beside me, I'd probably start to panic and behave more irrationally too.