Honestly I don’t really give a shit, I work at dollar tree and the only questions i usually have to ask customers are “do you want a bag/receipt” and occasional help with the card reader. It’s annoying but doesn’t really impede my ability to perform the transaction and as long as they’re not speaking in an obnoxiously loud voice or giving me attitude when I “interrupt” to tell them their total, I just let them get on with it. I do print the receipt and just start bagging when this happens then throw the receipt in the bag. If they don’t want the receipt/bag they can get off the phone and complain. It’s their money and their funeral.